Sql Recovery When Filestream Corruption Damaged Sql Server Database

When you try to restore the Microsoft SQL Server 2008 database (MDF file) from the sequence of transaction log backups, MS SQL Server 2008 database gets damaged. However, the original database, from which you took backup of the transaction log has not damaged. In these situations, the restore operation could not take place and thus your database become inaccessible and critical data loss situations occur. At this point, to gain access of your mission critical data, you are required to carry out SQL Recovery using appropriate solutions.

When the above problem of database corruption occurs, you might encounter the following event in the Application Event log of Microsoft SQL Server:

"Filestream corruption - missing files, error 7904.

The corruption is detected on a database that was restored from a sequence of backup logs. The original database does not seem to be corrupted.

7904 16 2 Table error: The filestream file for "FileID" was not found."

In above scenario, the data loss situations occur. In such cases, you get your valuable data back, you need to find out the cause of this problem and go for SQL Repair by sorting out this issue.

Grounds of the issue

This behavior of Microsoft SQL Server occurs due to filestream corruption. When it happens, the SQL Server database gets damaged as stated in above error message, and the database become inaccessible.

The Filestream is a critical SQL Server database component that integrates SQL Server Database Engine with NTFS file system by storing the varbinary(max) BLOB (Binary Large Object) data as the files on file system. Win32 file system interfaces offer streaming access to data. It uses NT system cache for data caching.

In all these cases, you encounter database corruption and need to go for SQL Recovery by repairing and restoring the database.

Recovery is best possible with the help of powerful and advanced third party applications, known as SQL Repair tool. They perform extensive scan of damaged database to extract all of the database objects such as tables, reports, forms, triggers and stored procedures.

These tools come equipped with interactive and simple graphical user interface and thus do not require sound and prior technical skills to carry out recovery process. With read-only behavior, they do not alter original contents of the database.

Getting table Error 8925 while working on MS SQL Server 2000 database?

Are you getting some table errors while working on MS SQL Server 2000 database? At times, these errors appear because of database corruption, which can be caused due to various reasons including header corruption in the MDF (Master Database File) file, virus infections, etc. Such corruption issues can make the SQL database vulnerable and may make it inaccessible. In such cases, you should use a third-party SQL database recovery software if you are unable to recover SQL database using any workaround.

Let us have a look at a practical situation in which you are getting the following error message while working on a database table in MS SQL Server 2000:

“Table error: Cross object linkage: Page P_ID1, slot S_ID1, in object ID O_ID1, index ID I_ID1 refers to page P_ID2, slot S_ID2, in object ID O_ID2, index ID I_ID2.”

Cause:

The root cause of this problem is that the P_ID1 page points to a P_ID2 in a different object.

Resolution:

To address this erroneous situation, you should look to recover MDF file. This could be done by doing either of the following methods preferably in the given order:

• Fixing the hardware related problems: You should try to resolve the reasons due to which the hardware parts may have become faulty. For this intent, the following measures can be taken:

  • Checking the error logs to confirm that some error has not occurred because of any hardware related problem.

  • Checking if write-caching is not enabled for the hard disks. If yes, then contact your hardware provider to the solutions.

  • Installing the operating system again after formatting the hard disk.

• Replacing updated backup with database: If the hardware parts are in perfect situation, then you should use the clean and updated backup to replace the database.

• Running DBCC CHECKDB: Lastly, you should run the DBCC CHECKDB utility to recover SQL database with the suggested repair clause.

If the problem is persisting and you are still getting the table errors, then there is a need of recovering the SQL database. For this purpose, I would recommend using a third-party MDF file recovery software. Use of fast and sophisticated scanning algorithms, non-destructive SQL recovery, and rich user interface are some of the salient features of these tools.

How to Repair Corrupted MS SQL Server 2008 Database by Rectifying Error 2537

Are you facing problems while using MS SQL Server 2008 database? Then, there may be chances that the database may have got corrupt. The database corruption can occur due to various reasons such as virus infections, abrupt system shutdown when the database is open, hardware problems, etc. Due to database corruption, you would not be able to access the database or face abrupt behavior. In such cases, you should perform appropriate SQL repair methods to solve the problem. If you are unable to repair MDF file, then you should use a third-party MS SQL repair software to do the needful for you.

Consider a scenario wherein you encounter the following error message while working on an MS SQL Server 2008 database:

"Table error: Object ID O_ID, index ID I_ID, partition ID PN_ID, alloc unit ID A_ID (type TYPE), page P_ID, row ROW_ID. Record check (CHECK_TEXT) failed. Values are VALUE1 and VALUE2."

Cause:

The root cause of such behavior is that the ROW_ID row (mentioned in the error message) failed the condition asked in the CHECK_TEXT.

Resolution:

To resolve this situation, you should perform the following methods in the given order:

Resolve the hardware issues: You should check the error logs and run hardware diagnostics to see if it has occurred due to any hardware malfunctioning. You can also swap the hardware components to isolate the exact reason for the error. Lastly if nothing works out, then you can also consider reformatting the hard disks and reinstalling the operating system.

However, for doing this you should ensure that you backup valuable data.

Restore from backup: If the problem is not hardware related, then you should check the backup. If it is updated and clean, then you should restore the database from its backup.

Run DBCC CHECKDB: If the backup is not updated, then you should run the DBCC CHECKDB tool with the suggested repair clause. This tool will rebuild the index, if exists.

The problem will be fixed once you perform the aforementioned MDF file repair methods. However, if it is not so and the problem is persisting then you should use a third-party MDF repair utility to repair SQL database. Such SQL repair tools possess rich user interface and use fast yet sophisticated scanning algorithms to repair mdf file.

SQL Data Recovery is an SQL repair software that repairs MDF files that are logically corrupted due to any reason. It is specifically designed to repair SQL databases created in MS SQL Server 7.0, 2000, 2005, and 2008. This MS SQL repair utility recovers various SQL database objects such as NDF files, tables, defaults, triggers, stored procedures, etc.

Memory allocation issues in MS SQL Server 2000 database results in Error 8902

In MS SQL Server, the system errors related with memory allocation often prove to be fatal for the database. Such problems can be caused by several reasons such as database corruption, which, in turn, can be the outcome of various other reasons. These reasons include virus infections, abrupt or unplanned system shutdown especially when the database is open, database header corruption, etc. You should try to find out the exact reason for such behavior and try to address the situation. If nothing works out, then I would suggest you to use a third-party MDF recovery software to recover SQL database.

Let us take a look at one of the system error that appears while you are working on an MS SQL Server 2000 database:

"Memory allocation error during DBCC processing."

Cause:

Such memory allocation error occurs when there is no memory for the non-clustered index coverage checks.

Resolution:

Such system errors relating to memory allocation should be dealt by performing the following MDF recovery methods. Please note that you should perform these methods only in the given order:

Recovering the hardware corruption problems
Restoring from database backup
Running DBCC CHECKDB utility

For more resolution details visit this link: http://www.americanchronicle.com/articles/view/177453

How to solve page header corruption cases in MS SQL Server 2008 database

You must have experienced cases of database corruption more often than not. When you face database corruption, you are unable to work further on the database. These instances can occur due to any arbitrary reason. Some of the most prominent ones could be unplanned system
shutdown especially when the database is open, page header corruption, virus infections in the database, etc. You can repair SQL database by using few workarounds. However, if nothing works fine then using a third-party SQL repair software is the best option.

For instance, the following error message appears while you are working on an MS SQL Server 2008 database:

“Table error: alloc unit ID A_ID, page P_ID. The test (TEST) failed. The values are VAL1 and VAL2.”

Cause:

Such problem has happened as a database page, P_ID, has not passed auditing test because of page header corruption. You can refer to the error message where it is clearly shown that the TEST string has failed the test.

Resolution:

In such erroneous situations, you should try to address the issue by performing MDF file repair. For the same purpose, there are the following methods that should be performed, ideally in the exact given order:

Verify the hardware components: You should check the state of the hardware components by the following measures:

Check the SQL Server error logs to verify if there is any hardware related error.

Swap the hardware components to narrow down on the exact hardware error, if any.

Check if the disk controller has enabled write-disk caching. If yes, then take the assistance of the hardware vendor to sort this issue.

Format hard drive and reinstall fresh copy of operating system to get a fresh and clean system.

Reinstate database using backup: If the hardware components are alright, then check the state of the database backup. If it is updated, then replace the database with the backup.

Now, check the database after performing these methods. The problem would not be appearing any more. However, at times the database is so severely damaged that it is not repaired using these methods. In such cases, the use of third-party MDF repair tools is required. These tools repair SQL database without overwriting the actual database thus ensuring safe and secure SQL recovery.

In these situations, the most recommended MDF repair software is Stellar Phoenix SQL Data Recovery that repairs MDF file from any random instance of database corruption. Developed for MDF files in MS SQL Server 7.0, 2000, 2005, and 2008, this MS SQL Server repair utility repairs several database objects such as stored procedures, collations, defaults, triggers, tables, NDF files, etc. In addition, this .MDF repair software is compatible with Windows 7, Server 2008, Vista, Server 2003, XP, and 2000.

Article Source :- http://www.programmersheaven.com/user/markwillium/blog/5740-How-to-solve-page-header-corruption-cases-in-MS-SQL-Server-2008-database/

Resolving Error 7965 and recovering corrupt database in SQL Server 2000

In SQL Server databases, an Index Allocation Map (IAM) page is a page type that stores the details about the extents, which is a collection of eight pages. These IAM pages are used to navigate through the heap, thereby making the searching process much faster. Well, at times these IAM pages do not exhibit the desired working due to database corruption. Database corruption can occur due to various reasons such as power outages, human errors, damaged hardware components, virus infections, etc. You should find out the cause and the resolution to recover SQL database. If you are not able to recover the database, then you should use a third-party SQL database recovery software to do the needful.

Consider a scenario wherein you encounter the following error message while working on the SQL Server 2000 database:

"Table error: Could not check object ID O_ID, index ID I_ID due to invalid allocation (IAM) page(s)."

Cause:

The root cause of this error message is that one of the IAM pages, which was identified by various Ids, has corrupted.

Resolution:

To resolve this erroneous situation, you should recover SQL database using the following methods, in the given order:

Check the hardware-related reasons: You should check the error log reports to check whether the error has occurred due to malfunctioning hardware components. You can also consider swapping the hardware components to isolate the actual reason for error. You may also consider reformatting the hard disks and reinstalling the operating system to get a fresh system to work on.

For Details Information Check This: http://www.americanchronicle.com/articles/view/166204

I/O Logical Check Failure Cause SQL Server Database Corruption

Like other databases and files, Microsoft SQL Server database may also come across various corruption issues. The corruption can take place due to various reasons, including the internal database or SQL Server application issues and system related problems. One major system related problem, which can cause MDF (Master Database File) corruption, is I/O logical check failure. In such situations, the database becomes totally inaccessible and you come across severe data loss situations. In order to get your mission critical data back, you need to repair and restore the corrupt database using SQL database recovery solutions.

The I/O logical check failure can be indicated by various error messages, which includes the following one:

“Error 823
I/O error detected during at offset in file ''”

The above error may also occur when SQL Server come across other system errors. After this behavior, SQL Server database become totally unusable. In order to sort out this problem, you need to fix it through SQL recovery methods.

Cause

If the read Windows API (Application Programing Interface) call or writer API call for SQL Server database is successful, but some particular logical checks are unsuccessful. In such cases, error 823 occurs, which resembles the following:

“2003-09-05 16:51:18.90 spid17 Error: 823, Severity: 24,
State: 2
2003-09-05 16:51:18.90 spid17 I/O error (torn page) detected during read at offset 0x00000094004000 in file 'F:\SQLData\mydb.MDF'..”

Resolution

In order to work around this behavior of Microsoft SQL Server database and perform SQL Server recovery, you should first run DBCC CHECKDB utility on the affected or damaged MDF file. Before you try to fix any system related issue with MS SQL Server, you should first check the database and sort out the problems. If DBCC CHECKDB statement fails to detect or fix any error, please check the Application Event Log of Microsoft SQL Server.

If the above method fails to find and fix any errors in Microsoft SQL Server, you need to restore the database from a valid and recent backup to get your valuable data back. In case backup is not available, you have to opt for third-party applications to repair and restore the corrupted MDF file.

The repair mssql applications are particularly designed to methodically scan entire database and extract all inaccessible data from it. The software have read-only approach and simple graphical user interface to ensure safe and easy recovery.

SQL Recovery is the most efficient and powerful utility to ensure absolute recovery in all MDF corruption situations. It works well with Microsoft SQL Server 2008, 2005, and 2000. The software restores all MDF file objects, such as tables, reports, forms, macros, stored procedures, and triggers.

Rectifying Error 5242 and recovering corrupt database in SQL Server 2008

A page is the most primitive unit of storage in an MS SQL Server database. The memory space allotted to a database file is divided into pages having contiguous address location. An Index Allocation Map (IAM) is a page type that stores the details about the extents used by a table per allocation unit. However, sometimes these pages do not function properly because of database corruption. You should take appropriate corrective measures to recover SQL database. However, if you are not able to restore the database then you should use a third-party SQL recovery software to do the needful for you.

Consider a scenario wherein you encounter the following error message while working on an SQL Server 2008 database table:

“An inconsistency was detected during an internal operation in database '%.*ls'(ID:%d) on page %S_PGID. Please contact technical support. Reference number %ld.”

Cause:

The root cause of this error message is that some inconsistency has occurred in the structure of the database page. It could have happened because of various reasons such as virus infections, abrupt system shutdown, hardware issues, etc.

Resolution:

To resolve this erroneous situation, you should perform either of the following methods, preferably in the given order:

Check for hardware issues: You should check the hardware components and the report logs to check whether the issue has occurred because of any hardware malfunctions. You should also swap the hardware components to isolate the error. Last but not the least, you can also consider reformatting the hard disks and reinstalling the operating system.

Restore from backup: If the issue is not hardware related, then you should check the backup of the database. If it is clean and updated, then restore the database from its backup.

Run DBCC CHECKDB: If the backup is not clean or updated, then you should run the DBCC CHECKDB utility without the repair clause to know the corruption level. Then, you should the run it with the suggested repair clause.

The aforementioned methods should be able to bring about the solution to the problem. However, if you are not able to repair the corrupted database then you should use a third-party SQL database recovery software to do the needful. Such read-only tools are able to recover SQL database using fast yet sophisticated scanning algorithms.

Stellar Phoenix SQL Database Recovery is an MS SQL recovery software that repairs the corrupted databases created in SQL Server 2008, 2005, and 2000. It is able to recover various database objects such as tables, queries, stored procedures, triggers, defaults, etc. In addition, this SQL server repair tool is able to recover the user-defined functions and data types. It is compatible with Windows 7, Vista, Server 2003, XP, and Server 2000.

Minimum Repair Option for the SQL Server Database Inconsistency Issues

In Microsoft SQL Server, if any transaction violates the integrity constraints during execution, database inconsistency occurs. The transaction leaves your MS SQL Server database in illegal state and it gets aborted with an error. Database inconsistency leaves your MDF (Master Database File) in an unusable and inaccessible state, which can lead to serious data loss. In such cases, a valid and updated backup come for your rescue. You can easily restore all your valuable data from current backup and prevent needs of SQL recovery using third-party applications.

However, in case you are unable to restore data from the backup or backup is incomplete, you can check the database errors and fix them using inbuilt utility of Microsoft SQL Server, called CHECKDB. It offers you an option to repair the database errors. Database inconsistency may also occur due to system level errors, like file system and hardware. You are highly recommended to fix these errors before repairing the database, else you may face the same problem again after some time.

When you apply DBCC CHECKDB on your MDF file, a suggestion is provided for indicating what minimum repair option is required to fix all errors. Such messages may resemble the following:

“CHECKDB found 0 allocation errors and 15 consistency errors in database 'mydb'.
repair_allow_data_loss is the minimum repair level for the errors found by DBCC CHECKDB (mydb”

The database repair recommendation is minimum degree of repair to try resolving all the errors from DBCC CHECKDB. It doesn't mean that the operation is capable of actually fixing all the errors and recover SQL database. You should also keep in mind that not all the errors reported by DBCC CHECKDB, where repair_allow_data_loss is suggested, cause data loss.

However, some of the database inconsistency errors can cause severe data loss problems. You must run the repair process for determining if solution of a particular error is going to cause data loss. In order to find errors with a specific SQL Server database table, you can try running DBCC CHECKTABLE tool.

In case you run across database corruption and data loss due to any inconsistency error, MS SQL repair becomes need of hour.
You can easily repair and restore damaged MDF file of SQL Server using SQL Server recovery software. The applications use advanced scanning algorithm to provide assured recovery of all your valuable data.

Stellar Phoenix SQL Recovery is the best utility to ensure absolute recovery of inaccessible SQL Server database. The software works well with Microsoft SQL Server 2008, 2005, and 2000. It is capable of restoring all MDF file objects, such as tables, reports, forms, macros, triggers, stored procedures, data types, and constraints.


Article Sources: http://www.articlecat.com/Article/Minimum-Repair-Option-for-the-SQL-Server-Database-Inconsistency-Issues/403169

How to Resolve 'Error 823' While Accessing SQL Server Database?

Are you getting 'Error 823' while accessing an SQL Server database or modifying the database? Are you getting various database inconsistency errors while querying SQL Server database? Well, the problem may take place if your SQL Server database is either inconsistent or damaged. In such critical situations, you must have a complete backup to restore data from it. However, the situations may become worse if there is no current backup in place. At this point of time, you have to opt for SQL recovery tools to get your valuable data recovered.

You may come across the below errors in Windows Application Event Log or MS SQL Server ERRORLOG while performing any operation on MDF (Master Database File) of SQL Server:

"2010-03-06 22:41:19.55 spid58 Error: 823, Severity: 24, State: 2. 2010-03-06 22:41:19.55 spid58 The operating system returned error 38(Reached the end of the file.) to SQL Server during a read at offset 0x000000a72c0000 in file 'C:\Program Files\Microsoft SQL Server\MSSQL10.SQL2008\MSSQL\DATA\my_db.mdf'. Additional messages in the SQL Server error log and system event log may provide more detail. This is a severe system-level error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online."

2009-12-09 04:53:49.170 spid25s Error: 823, Severity: 24, State: 2. 2009-12-09 04:53:49.170 spid25s The operating system returned error 21(The device is not ready.) to SQL Server during a read at offset 0x00000000132000 in file 'D:\tempdb\tempdb_data.mdf'. Additional messages in the SQL Server error log and system event log may provide more detail. This is a severe system-level error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online.

Cause:

The Error 823 may occur due to either SQL Server database corruption or I/O errors in the database. The error usually indicates that that there are some inconsistency in file system or the database file is corrupt.

Resolution:

To recover SQL server database, use any of the below methods:

Run Chkdsk to find file system inconsistency issues and resolve it.

Use DBCC CHECKDB utility to try repairing the damaged database.

If the above methods can not perform MS SQL recovery, You need to use third party applications to repair and restore the damaged database. The MDF Repair software performs safe, quick, easy, and absolute recovery in all MDF corruption situations.

Stellar Phoenix SQL Recovery is the most advanced and efficient utility to ensure absolute recovery of damaged database. The software is designed for Microsoft SQL Server 2008, 2005, and 2000. It restores all the objects of MDF file, such as tables, reports, forms, macros, triggers, constraints, and stored procedures.

Resource taken from: http://www.programmersheaven.com/user/markwillium/blog/5372-How-to-Resolve-Error-823-While-Accessing-SQL-Server-Database/

How To - Fix Stored Procedures Corruption in MS SQL Server?

Are you encountering errors while executing stored procedures in Microsoft SQL Server database? Is stored procedure not producing correct outputs? The problem may occur due to corruption of the stored procedures. After corruption, the database may not function correctly and you will need to repair it. In some cases, corrupt stored procedures may even damage the database if they perform improper database functions. In both these cases, you need SQL Database Recovery applications to get your database repaired.

• Stored Procedure is in fact a set of Transaction- SQL (T-SQL) statements, which are compiled in a single query execution plan. It works like a construct in programming languages. The stored procedure has a number of advantages, such as pre-compiled execution, enhanced security controls, reduced client/server traffic, effective reuse of programming abstraction and code, and many more.

You can use the stored procedure to run a sequence of the SQL statements on conditional logic. If the conditional logic and the SQL statements are written in stored procedures, they become a part of a single execution plan. However, in this case if any of the stored procedure gets damaged, you may come across a number of critical database corruption situations.

Corruption of the stored procedures may degrade the efficiency of MS SQL Server database and produce bad output. The function that needs to be executed using stored procedures might come down. This behavior usually makes the SQL Server database fragile. Stored procedure corruption may be indicated through a number of error message, similar to the following ones:

“Error 0:[SQL-DMO]Object 'dbo.SP_ProcName' was not scripted. It is possible that the information in system table 'syscomments' about the object was corrupt or missing?”

Or

“Incorrect key file ... try to repair it”

SQL Server database stored procedures may occur due to virus infection, improper system shutdown, application malfunction, improper command execution, and many alike. Irrespective of the cause of this problem, data loss occurs and SQL Recovery is required.

You can easily Recover SQL database with the help of third-party SQL Server Recovery applications. They come equipped with highly-advanced and efficient scanning techniques to ensure absolute recovery of damaged SQL database. The software are built-with simple and self-descriptive graphical user interface to provide ease of use.

Rectifying Error 5228 in SQL Server 2008

When you use the DML (Data Manipulation Language) commands to update the database, the rows sometimes get in an intermediate state. It is called the antimatter state that enables concurrent DELETE statements to leave a pointer for the index builder transaction so that deleted rows are not inserted again. Ideally, these rows should be deleted at the end of the operation. However, sometimes it does not happen that invariably results in database corruption. To resolve this situation, you should use appropriate corrective methods. However, if you are unable to do so then you should use a third-party SQL Server recovery software to address the issue.

Consider a scenario wherein you are working on a table in SQL Server 2008. You get the following error message while performing some modifications on the database table:

“Table error: Object ID O_ID, index ID I_ID, partition ID PN_ID, alloc unit ID A_ID (type TYPE), page PG_ID, row R_ID. DBCC detected incomplete cleanup from an online index build operation. (Antimatter column value is VALUE.)”


Cause:

The root cause of this error message is that for the O_ID object , I_ID index, and PN_ID partition, there is an unfinished online index build was detected. This is testified by the presence and the displayed value of an antimatter column on the R_ID row.

Resolution:

To resolve this error message, you should perform the following methods, preferably in the given order:

Check for hardware issues: You should run the hardware diagnostics and check if the error appeared because of any hardware issue. You can also try to swap the hardware components to zero in and resolve the issue. In addition, you can try to reformat the disk and reinstall the operating system.

Restore from backup: Check if you have a clean and updated backup of the database. If yes, then you should restore the database with its backup.

Run DBCC CHECKDB: As a last resort, you should run the DBCC CHECKDB command without the repair clause to ascertain the level of the corruption. You should run the command again after knowing the repair clause. It will rebuild the corrupted indexes.

However, if you still are not able to resolve this error by any which method then you should use a third-party SQL recovery software. Such read-only tools are able to recover SQL database using sophisticated scanning algorithms without overwriting the original data.

Stellar Phoenix SQL Recovery is an MS SQL recovery software that enables you to recover corrupted databases created in SQL Server 2000, 2005, and 2008. It is competent enough to restore various objects of SQL database such as tables, queries, stored procedures, triggers, views, etc. This SQL recovery software is also able to preserve the database constraints and user-defined data types. It is compatible with Windows 7, Vista, Server 2003, XP, and Server 2000.

Resolving Error 5171 in SQL Database

SQL database corruption can occur due to SQL Server malfunctioning, virus infection, improper system shutdown, hardware failure and many more. Once the MS SQL database gets corrupted, the SQL database become inaccessible. In such situations, use you backup, if there is no backup, the user needs to repair mdf file by using advanced SQL MDF Repair application. Consider a practical scenario, where a user is working on SQL Server 2005 and creating a report. While doing so, the Windows restarts due to power failure. When user restart the system, the SQL database becomes inaccessible. When the user tries to attach the MDF manually, he encounters the below error message:

“An exception occurred while executing a Transact-SQL statement or batch. _db.mdf is not a primary database file. (Microsoft SQL Server, Error: 5171).” Or

“C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Data\MYDATABASE.mdf is not a primary database file. (Microsoft SQL Server, Error: 5171)” In such circumstances, the database administrators recommend to attach a single file. However, when the user uses sp_attach_single_db Stored Procedures, the user encounters the following error message:

“Server: Msg 5172, Level 16, State 15, Line 1 The header for file path……\.mdf is not a valid database file header. The PageAudit property is incorrect.”

The above error message encounters due to MDF file corruption. The above issue occurs when the MDF file header gets corrupted or some invalid information is inserted in the header file. All these situations result, inaccessibility of the SQL database. To ensure accessibility of the SQL database, the user needs to recover it by using the latest backup. But sometime user has not created any backup of its database or mdf file, then he needs to perform MDF repair. To do so, user needs to use efficient and effective MDF repair application. Such mdf file repair applications incorporate advanced and powerful scanning algorithms to repair the corrupted MDF file. The mdf recovery software perform systematic scan of corrupted MDF files, repair and restore them in their original format without altering any information.

Resource Link: http://www.goarticles.com/cgi-bin/showa.cgi?C=1973872

Troubleshooting Error 8999 in SQL Server

All the users connected to the SQL Server instance have access to a global resource called tempdb system database. This database holds temporary user objects, internal database objects, and row versions that result from data modification. At times, when some allocation checks are performed on this TEMPDB database, they may result in allocation errors and unexpected results. Since TEMPDB cannot be put in offline mode, no fixes are possible for allocation errors in this database. However, for rest of the SQL databases, you can perform MS SQL Repair using suitable tools and utilities.

For exemplifying the given problem, consider, you might start receiving unexpected database access problems in MS SQL Server database. To determine the exact cause of the problem, you run CHECKDB command and the below error message pops up:

“Database tempdb allocation errors prevent further CHECKNAME processing.”

This error message is recorded with error number 8999 and severity level 10.

Cause

The above error results specifically when the entire check operation terminates because of allocation error in TEMPDB.

If database is still corrupt, the root cause of corruption is hardware problems.

Solution

To resolve the issue, you should:

Diagnose the SQL Server™ error and Microsoft® Windows NT® system log for determining if the problem has actually resulted due to hardware problems. You can also run hardware diagnostics and fix related concerns by, swapping the hardware components or installing a new hardware system etc.

restore the database from the last available backup, if hardware issues have not been the problem.

Run DBCC CHECKDB and determine the extent of database damage, in case no suitable backup is present. Later, you can run the same command but with a suitable SQL Repair clause to fix database corruption. However, you should backup the database before executing database repair as data loss is likely.

Run MS SQL Repair software for repairing corrupted SQL database. These utilities generally repair the database after any type and extent of damage.

Resource Link: http://www.articlealley.com/article_1520581_11.html

Repairing SQL Server master database – Error 3417

SQL Server is a relational database management system (RDBMS) by Microsoft that is designed for the enterprise environment. It has got two primary query languages, T-SQL and ANSISQL. It provides you the flexibility to access your database from anywhere, be it from a data center, desktop, or from a mobile device. It also provides combined services to query, search, synchronize, report, and analyze the database records. However, at times it may happen that the SQL Server is unable to run. It may be possible that the master database has gone corrupt. This can be possible because of various reasons such as virus infections, human errors, power outages or abrupt system shutdown while SQL Server was open. In such cases, you should replace the corrupted database with its updated backup. However, if the backup is not updated then you should use a third-party SQL Database Recovery software to recover SQL database.

Consider a scenario wherein you have MS SQL Server 2008 installed on your system. When you log onto the SQL Server, you are unable to do so. An error message is displayed, that is:

“Cannot recover the master database. SQL Server is unable to run. Restore master from a full backup, repair it, or rebuild it. For more information about how to rebuild the master database, see SQL Server Books Online.”

Cause:
The cause of the mentioned error message is that the SQL Server is unable to start the master database. If the master or tempdb database cannot be mounted, SQL Server cannot run. It is quite possible that the master database has gone corrupt because of various aforementioned reasons.

Resolution:
To resolve this issue, you should, first of all, check whether there is an updated backup of the master database. If yes, then you should replace it with the corrupted database. However, if the database is not updated then you should use a third-party SQL database recovery software to perform SQL Recovery of the corrupted database. Such read-only tools are able to recover SQL databases using fast yet sophisticated scanning algorithms.

SQL Database Recovery is an SQL Server recovery tool that enables you to perform SQL database recovery of the corrupted databases. It is able to repair various database components such as tables, defaults, stored procedures, triggers, views, and rules. It can also repair user-defined data types and functions and also database constraints such as primary key, foreign key, unique key, and check. It is compatible with Windows 7, Vista, Server 2003, XP, and 2000.

Incorrect Updating of System Tables Cause Database Corruption in SQL Server

When you create an MS SQL Server object, the properties of objects are known as metadata. SQL Server stores metadata in a special tables, known as System Tables. You can update these tables as per your requirement. It is quite easy to update system tables by defining the triggers. However, MS SQL Server automatically updates most of the system tables internally using inbuilt API. You should always create a complete backup of all the system tables, before you try to update them. If the update fails or you improperly update the table, your SQL Server database may get severely damaged and you need SQL Database Recovery to be fixed.

The system tables are automatically created by Microsoft SQL Server, when you create an object. For instance, Microsoft SQL Server 2000 stores all your data types and column names in the internal system table, known as 'syscolumns'. The metadata, stored in system tables, can be used to gather performance statistics, discover column and table differences and similarities while upgrading the database, and obtain lock information.

In Microsoft SQL Server 2005 and later versions, the System tables are hidden and cannot be queried like general database tables. These tables are restricted even for the user who have full Database Administrator privileges. Though, system tables are not accessible directly, but there are various inbuilt procedures and views to extract metadata from them.

After accessing the system tables and metadata, you can update them, if required. The update process can be used to add new options or to remove some existing options.

You should work safely while updating the system table. Incorrect or improper updating of SQL Server system tables may lead to severe problems, which might need to reinstall Microsoft SQL Server application. It may also damage the SQL Server database. There is no guarantee of successful updating. Before you prompt for updating system tables, you are highly recommended to create a good backup of SQL Server database.

In case SQL Server database gets damaged due to incorrect updating of system tables, perform SQL Server Recovery by restoring the database from backup.

If backup is unavailable, use MS SQL Recovery software to sort out the problem. The applications are specifically designed to thoroughly scan entire database and extract all inaccessible data from it. They perform simple and secure SQL Recovery with interactive design and read-only behavior.

SQL Recovery software repairs and restores damaged Microsoft SQL Server database in all cases of corruption. The software works well with MS SQL Server 2008, 2005, and 2000. It recovers all damaged SQL Server database objects, such as tables, views, reports, triggers, stored procedures, data types, and more.

SQL Server Instance Does Not Start After Restoring Model System Database

Microsoft SQL Server holds a set of the system database that are required for options of Microsoft SQL Server instance. You should backup the system database after each critical update, to prevent database corruption. The system database backup must include model, master, and msdb. You can restore Microsoft SQL Server easily from backup, in the event of the system failure. However, in some situations, the SQL Server's MDF (Master Database File) file may become completely inaccessible after you restore a model system database from backup. It leads to critical data loss situations and requires SQL Database Recovery to work around the problem if backup is not updated.

In a practical scenario, you may not start an instance of SQL Server successfully, when you attempt to initialize any instance of MS SQL Server after restoring model system database using 'WITH NORECOVERY' option. Furthermore, you may come across the below error message in the application error log of Microsoft SQL Server at the same time:

“2003-04-18 09:37:38.85 spid5 Starting up database 'model'.
2003-04-18 09:37:39.24 spid5 Bypassing recovery for database 'model' because it is marked IN LOAD. 2003-04-18 09:37:39.65 spid5 Database 'model' cannot be opened. It is in the middle of a restore.”

This behavior of Microsoft SQL Server renders entire MDF database file inaccessible and serious data loss occurs. To retrieve data from affected database, you need to Repair SQL Server database file by fixing this problem.

Root of the problem

When the model system database is restored using 'WITH NORECOVERY' option, restore options leaves your SQL Server model database in unrecovered state. Thus, you can no longer use the model system database as expected. Due to the same, SQL Server may not function effectively.

Resolution

To sort out this behavior, clear 'Loading' status of model system database in instance of Microsoft SQL Server. In case the SQL Server database is severely damaged and model database is also affected, reinstall SQL Server application and restore database from updated backup.

If you do not have backup, use third-party MS SQL Recovery software to repair and restore the database into accessible and working state. The SQL Recovery applications use advanced scanning algorithms to systematically scan whole database and extract all inaccessible objects from it.

SQL Recovery is a powerful, yet easy to use and safe utility to ensure absolute recovery in all SQL Server database corruption scenarios. The software works well with Microsoft SQL Server 2008, 2005, and 2000. It restores all MDF file objects, such as tables, reports, forms, macros, constraints, stored procedures, and triggers.

Recovering Error 2575 in SQL Server 2008

A page is the most basic unit of storage in SQL Server. The memory space allotted to a database file is divided into pages having contiguous address location. And these pages are, in turn, stored in extents, which are a collection of eight contiguous pages. The role of the extents is to effectively manage the pages. An Index Allocation Map (IAM) is a page type that stores the details about the extents used by a table per allocation unit. These are also used by SQL Server to traverse through a heap to locate the available space for new rows. However, sometimes these IAM pages do not function properly because of corrupted databases. A database can become corrupt because of virus infections, human errors, faulty hardware, power outages, etc. In such cases, you should consider taking appropriate measures to recover the database. However, if you are not able to repair the database then you should use a third-party application for MS SQL Recovery.

Consider a scenario wherein you receive the following error message when you try to mount your SQL Server 2008 database.

“IAM page P_ID1 is pointed to by the next pointer of IAM page P_ID2 in object ID O_ID, index ID I_ID, partition ID PN_ID, alloc unit ID A_ID (type TYPE) but was not detected in the scan.”

The error message states that the IAM page was found for the current index but it was not found for the next-page pointer.

Cause:
There could be two possible reasons for the aforementioned error message, either the reference of the metadata file missing or the header of the IAM page is corrupt. Because of this, the database has gone corrupt.

Resolution:
To resolve the issue, you can perform the following measures:
Look for hardware failures: Do check if this error is because of faulty hardware. Run hardware diagnostics and check the error logs and rectify the hardware-related errors, if any. You should also look to swap different hardware components if the database is getting corrupt frequently. Also, you can also contemplate using a new hardware system. However, this would mean formatting the hard disk and reinstalling the operating system, which is not required as it would erase the database as well.
Replace the corrupted database with a clean backup.
Run DBCC CHECKDB command without a repair clause to check the extent of the corruption. Then, run it again with the appropriate repair clause after determining it.

However, if you are still not able to repair the corrupted database then you should use a third-party SQL Server recovery application to recover SQL database. Such read-only tools perform SQL Recovery using fast yet sophisticated scanning algorithms without overwriting the damaged area.

SQL Recovery software is a robust tool that enables you to execute SQL recovery on corrupted SQL database components such as tables, defaults, stored procedures, triggers, views, and rules. It is also able to repair the database constraints such as primary key, foreign key, unique key, and check. The MS SQL recovery utility recovers corrupted databases that were originally created in MS SQL Server 2000, 2005, and 2008. The software is compatible with Windows 7, Vista, Server 2003, XP, and 2000.

Recovering corrupt index in SQL Server 2008 – Error 2530

MS SQL Server uses indexes to quickly find the records when a query is executed. Actually the SQL Server uses the index in a similar way as you would read a book. If you want to search a particular topic, you do not have to traverse each and every page. You would just look for it in the index and open the page/section directly. Following the same pattern, an index has got keys that are built from one or more columns in the table and pointers that refer to the storage location of the queried data. Well-defined indexes can improve the system performance remarkably as the amount of data that is read to fetch the query result. However, at times the index can get disabled because of various reasons such as power surges, virus infections, human errors, etc. In such cases, you should consider taking appropriate actions to resolve the issue. However, if you are not able to address the issue then you should use a third-party SQL Database Recovery tool to repair SQL database.

Consider a scenario wherein you are working on SQL Server 2008 system when you encounter the following error message:
“The index "%.*ls" on table "%.*ls" is disabled.”

Cause:
This error message is displayed when the index is disabled. The DBCC command cannot proceed when the index is disabled. There could be following reasons for this:
You have disabled the index manually by using ALTER INDEX.
The index is disabled as the database is corrupt.

Resolution:
To resolve this error message, you need to either rebuild it or drop it and recreate it. To do this, you can perform the following methods:
1.First of all, enable the index by using either of the following methods:
ALTER INDEX statement with the REBUILD clause
CREATE INDEX with the DROP_EXISTING clause
DBCC DBREINDEX
2.Rerun the DBCC command.

However, if you still are not able to address the issue, it means that the database is corrupt. In such a case, you should consider using a third-party SQL repair application to SQL Recovery. Such read-only tools repair SQL databases without overwriting the original data.

SQL Recovery software is a robust tool that enables you to repair and restore database components such as tables, defaults, stored procedures, triggers, views, and rules. It is able to perform mdf repair for the databases created in SQL Server 2000, 2005, and 2008. It can also recover index, database constraints, user-defined functions, and user-defined data types. It is compatible with Windows 7, Vista, Server 2003, XP, and 2000.

Resolving 8905 and 8924 DBCC CHECKDB Failure Errors

To resolve logical damages in MS SQL Server database, an easy way followed by most database users is to execute DBCC CHECKB (with appropriate repair clause). This command after checking the logical and physical integrity of the database, repairs the database to the maximum possible level. However, if the command fails to repair, then it displays a severity level (either 10 or 16) error message(s). This error message helps the user identify the exact cause of database corruption. After any of the above error message(s) appears, the data saved in the database becomes inaccessible. To access the records in such cases, the user needs to restore the database records from an updated backup. But, in case no backup is available or backup falls short of restoring the database records, the database users need to repair the database using an efficient SQL Database Recovery application.

The above scenario can be explained with the help of the below error message:

“Server: Msg 8905, Level 16, State 1, Line 1
Extent (1:886000) in database ID 37 is marked allocated in the GAM, but no SGAM or IAM has allocated it.
Server: Msg 8905, Level 16, State 1, Line 1
Extent (1:886112) in database ID 37 is marked allocated in the GAM, but no SGAM or IAM has allocated it.
…
Repairing this error requires other errors to be corrected first.
Repairing this error requires other errors to be corrected first.
Repairing this error requires other errors to be corrected first.
...”

This error message appears when the user executes a DBCC CHECKDB command to repair his/her logically corrupted SQL Server 2000 database. Additionally, the same error message appears every time you try to repair your database.

Cause:

The above error message appears when the SQL Server 2000 database corruption is beyond the repair capabilities of DBCC CHECKDB command.

Resolution:

To resolve the above error message and to access the database records, the user needs to follow the below steps:

Restore database from an updated, valid, and complete backup.
Use a third-party SQL Database Repair application in case no backup is available. A commercial MS SQL Recovery utility can repair any logically damaged database, even if it cannot be repaired by DBCC CHECKDB command.

Stellar Phoenix SQL Recovery repairs MS SQL Server 2008, 20005, and 2000 database damaged due to logical crash. The SQL Repair tool is absolutely safe. It can be installed on Windows 7, Vista, 2008, XP, 2003, and 2000.

DBCC CHECKTABLE Doesn't Work on a Table That Has Corrupted Indexes

Microsoft SQL Server stores all your valuable data in the MDF (Master Database File) in the form of tables. You can access data from the SQL Server database tables, using SQL queries. Under some circumstances, the database tables become inconsistent and you cannot access data from it. This behavior of MS SQL Server leads to significant data loss situations. At this point of time, you must have absolute backup of the database to restore the data from. However, if the backup is not available or not updated, you are required to use MS SQL Recovery applications to extract inaccessible data.

When you run the DBCC CHECKTABLE command on MS SQL Server database table to check the consistency and integrity of the table, you may come across the below error message:

“[Microsoft][ODBC SQL Server Driver][Named Pipes]ConnectionCheckForData (PeekNamedPipe()).
[Microsoft][ODBC SQL Server Driver][Named Pipes]Connection broken.”

The table checking gets terminated with this error. The error message occurs in the SQL Server database table, which has damaged indexes. The table remains inaccessible after this error message and you need to Recover SQL database to extract data.

DBCC CHECKTABLE is an in-built command-line utility in Microsoft SQL Server, which is used for checking the consistency and integrity of all structures and pages, which make up the indexed view or table.

Cause

You may come across this behavior of Microsoft SQL Server due to severe corruption in the SQL Server database table. The table corruption may occur due to numerous reasons, such as virus infection, application malfunction, unexpected system shutdown, hardware problems, operating system malfunction, and more.

Resolution

Try out the below steps to sort out this problem:

Obtain the latest service pack of Microsoft SQL Server. It helps you to prevent this problem from being occurred in future.
Drop all the automatically created statistics.
Restore SQL Server database from the most recent backup.
Repair and restore the damaged SQL Server database using powerful and advanced third-party applications, known as SQL Server Recovery software.

The SQL Server Recovery applications are particularly designed to carry out in-depth scan of entire SQL Server database using high-end scanning techniques and extract all inaccessible data from it. The software has read-only conduct and rich graphical user interface to ensure quick, safe, and easy recovery in all cases of SQL Server database corruption.

SQL Recovery software repairs and restores Microsoft SQL Server database in an absolute way. The software works well with Microsoft SQL Server 2008, 2005, and 2000. It restores all damaged objects of Microsoft SQL Server database, such as tables, reports, forms, macros, view, constraints, triggers, and stored procedures.

Recovering SQL database from the Error: 0x80004005 E_FAIL Minor error

Those of you who are working with SQL Server database in your organization must be knowing how the database grows with time. The database files can grow quickly, which sometimes hampers the performance of the system. Moreover, the internal structure of the database may get fragmented with time that eventually result in wastage of the disk space. To remove the fragments and make the system faster, you should use Compact and Repair utility in SQL Server. However, sometimes when you try to access the database, it does not open as intended and throws some error message. In such cases, you should take appropriate measures to address the issue. It may be possible that the database is corrupt. Then, you should replace it with updated backup. And if the backup is not available, then you should consider using a third-party SQL Recovery tool.

Consider a scenario wherein you are working on a database and you have tried to open a connection in the Query Analyzer. The connection fails and an error message is displayed, that is:

“Error: 0x80004005 E_FAIL
Minor Error: (25017)
Description: Unspecified Error”

A Microsoft embedded Visual Basic (eVB) application that uses CompactDatabase method is not able to compact a corrupted SQL Server CE database.

Cause:

The root cause for this error message is that the database that you are trying to compact is corrupt. This can be inferred from the fact that when CompactDatabase utility is used, the ActiveX code tries to initialize the source database before compacting it. If the initialize fails, CompactDatabase aborts. Hence, you cannot use CompactDatabase on a corrupted database because the Initialize method on a corrupted database always fails.

Resolution:

To resolve this issue and recover SQL database, you should obtain the latest service pack for Microsoft SQL Server 2000 Windows CE Edition. If the issue is not resolved, you should use a third-party SQL Database Recovery tool. Such tools employ fast yet sophisticated algorithms to scan damaged area for performing MS SQL recovery.

SQL Recovery software is an efficient tool that can perform SQL server recovery on the databases created in MS SQL Server 2008, 2005, 2000. It is able to recover various database components such as identity, rules, tables, indexes, defaults, stored procedures. This SQL recovery tool can also recover database constraints such as primary key, foreign key, unique key, check, etc. It is compatible with Windows 7, Vista, 2003 Server, XP, 2000.

Recovering database from corrupt filegroups in SQL Server – Error 2522

If you are a database backend user in your organization, then you must be knowing how the size of the database increases immensely within a span of a few months. If yours is a growing organization, then the issue gets even more aggravated as you have to regularly maintain the database. For this purpose, SQL Server 2005 provides various options to support database growth. One of them is creating a filegroup that can loosely be termed as a logical storage unit containing the database objects that map to a file system file or multiple files. In this, additional disk drives are allocated to support estimated growth of the database. Then, the additional files can be shifted to these filegroups to spread the I/O over additional disks. However, even the filegroups-supported database can get corrupt due to various reasons. In such cases, you should replace corrupt database with its updated backup. However, if the backup is not available then you should consider using a SQL Database Recovery tool.

Consider a scenario wherein you have received the following error message when you open the SQL database:
“Unable to process index I_NAME of table O_NAME because filegroup F_NAME is invalid.”

The aforementioned message states that the index cannot be checked as one of the filegroup IDs, which is stored in the index metadata, does not exist.

Cause:
The root cause of this error message is that the filegroup IDs stored in the metadata for an index do not exist so that index can not be checked. It may be possible that the database is corrupt.

Resolution:
To start off, you should check whether this error message is because of some hardware failures. You should run the hardware diagnostics, check the SQL Server error log, etc. If the error is not hardware-related then you should replace the database with an updated backup. However, if you do not have the backup then you should consider using a third-party SQL Server recovery tool to Recover SQL database.

SQL Recovery software is a robust tool that can perform SQL recovery on the databases created in MS SQL Server 2008, 2005, 2000. It employs fast and complex algorithms to scan the damaged area to repair the databases. The SQL database recovery tool is able to recover various database components such as identity, rules, tables, indexes, defaults, stored procedures. It can also recover database constraints such as primary key, foreign key, unique key, check, etc. It is compatible with Windows 7, Vista, 2003 Server, XP, 2000.

How to resolve Error 2501 in SQL Server?

A lot of users prefer using MS SQL Server as the Relational Database Management System (RDBMS) both at their home as well as their workplace. This is so because it is a robust RDBMS, which is designed to conform to the enterprises environment, organizations, and high-end users with their advanced needs. However, sometimes the SQL database file (.MDF) may get corrupted due to various reasons such as virus infections, software failure, improper shut down while database is open, etc. In such cases, you should replace corrupted database with its updated backup. However, if it is not available then you should consider taking appropriate measures to SQL Recovery Server database.

Consider a scenario wherein you are working on a SQL Server database that is the master database of your organization. You try to open one of the tables but it fails to open and gives an error message, that is:

“Could not find a table or object named '%.*ls'. Check sysobjects.”

The aforementioned error message signifies that the table has become corrupt and, therefore, you cannot access the database records.

Cause:
The root cause of this error message is that the table specified in the DBCC CHECKTABLE was not found. It may have happened that the table did not exist or the metadata of the database was corrupt.

Resolution:
There are following measures that you can take in such situations:
First of all, make it a point to check if the table exists or not.
Replace the corrupted table with its updated backup.
Run DBCC CHECKDB without a repair clause to find out the effect of the data corruption. DBCC CHECKDB will recommend a repair clause to use. Then, use the recommended repair clause with DBCC CHECKDB.

If all the aforementioned measures are unable provide the SQL Database Recovery, then you should use a third-party MS SQL recovery tool. These read-only tools are highly interactive, and enable you to repair and recover the database components using sophisticated scanning algorithms.

SQL Recovery software enables you to repair and recover all the SQL components such as tables, rules, views, stored procedures, indexes, Defaults, Triggers, etc. In addition, it can successfully repair user defined functions and data types. It can repair the databases created in MS SQL Server 2008, 2005, 2000. It is compatible with Windows 7, Vista, 2003 Server, XP, 2000, and NT.

How to resolve the Error 8948 in MS SQL Server 2000?

MS SQL Server is a Relational Database Management System (RDBMS) that is well designed to conform to the advanced needs of enterprises environment, organizations, and high-end users. It provides various tools to ease the burden of database development, maintenance and administrations. One of them is Page Free Space (PFS). It is a page in the database that searches for free space in the table. It contains a byte-map that holds one byte per page (P_ID), approximately 64 MB, in a PFS. However, sometimes P_ID is assigned to a PFS and you are not able to access the page. In such cases, the database becomes inaccessible and may get corrupt. You should replace the database with updated backup. If the updated backup is not available, then you should use an SQL Database Recovery tool to recover SQL database.

Consider a scenario wherein you encounter an error message when accessing a database table in MS SQL Server. The error message is:
“Database error: Page P_ID1 is marked with the wrong type in PFS page P_ID2. PFS status 0xVAL1 expected 0xVAL2.”

After encountering the aforementioned error message, you are unable to access the table or perform any other operation on it.

Cause:
The error message may have occurred because the bits are not set correctly in the database table, given the type of page and context in which it is read.

Resolution:
To resolve this issue, you can take the following measures:
Run hardware diagnostics and see if the data corruption is because of hardware failure. Try different hardware configurations to check if it is because of any hardware failure.
Replace the database table with its updated backup.
Run DBCC CHECKDB without a repair clause to find out the effect of the data corruption. DBCC CHECKDB will recommend a repair clause to use. Then, use the recommended repair clause with DBCC CHECKDB. The idea behind using DBCC CHECKDB is to set the PFS byte to the correct free space bits and to set them appropriately.

However, if you are not able to do SQL Recovery using the aforementioned measures then you should use a SQL database recovery tool. These read-only tools are highly interactive and employ complex algorithms to scan the damaged area to recover it.

SQL Recovery software is able to repair all the SQL components such as tables, rules, views, stored procedures, indexes, Defaults, Triggers, etc. In addition, it can successfully repair user defined functions and data types. This sql database recovery tool can repair all the databases created in MS SQL Server 2008, 2005, 2000. It is compatible with Windows 7, Vista, 2003 Server, XP, 2000, and NT.

SQL Server Can Not Recognize MDF File After Improper System Shutdown

MDF (Master Database File) is the repository of all valuable data in the Microsoft SQL Server. Data is stored in the form of tables. However, in some situations, improper system shutdown may make your database faulty and inaccessible. This is because unexpected shutdown may damage the database. Microsoft SQL Server can not read the corrupted database and thus you face data loss. In such critical situations, you need to opt for SQL Database Recovery solutions if the backup is not updated.

Improper system shutdown may occur due to numerous reasons, such as system crash, power outages, application freezing, unresponsiveness of the system, and more. As a practical example of this problem, you may encounter the below error message when you reboot your system after an unexpected system shutdown and try to attach the MDF file manually:

“TITLE: Microsoft SQL Server Management Studio Express
Failed to retrieve data for this request.
(Microsoft.sqlserver.Express.smoenum)
For help, go to Microsoft help

ADDITIONAL INFORMATION: An exception occurred
while executing a Transact-SQL statement or batch.
(Microsoft.sqlserver.Express.connectioninfo
D:\Data\MSSQL\ISEC.mdf is not a primary database file.
(Microsoft SQL Server, Error: 5171) For help, go to Microsoft help

After this behavior of Microsoft SQL Server, you can not access the database. It results in severe data loss. In order to access your valuable data, it is essential to identify the root of the problem and perform SQL Server Recovery by resolving it.

Cause

Microsoft SQL Server can not read the damaged MDF file. In such cases, the problem occurs when SQL Server attempts to read data from damaged files and fails. Corruption is caused by improper system shutdown, which damages critical data structures and important system files of SQL Server database.

Resolution

You can work around this problem by restoring the damaged MDF file from an updated backup. Backup is the redundant copy of the database, which is maintained to prevent data loss. However, if the database backup is either not updated or is damaged, you need to use third-party SQL Recovery software to restore your database.

The applications are specifically designed to carry out in-depth scan of entire database and extract inaccessible data from it. They do not demand sound technical skills due to their simple and interactive user interface. Such tools perform safe SQL Recovery owing to their read-only conduct, by virtue of which they apply complex algorithms to read data from the original file. This data is simultaneously saved in a newly created file, thus leaving the original file intact.

SQL Recovery software repairs and restores damaged SQL Server database in all cases of corruption. The software works well with Microsoft SQL Server 2008, 2005, and 2000. It restores all MDF file objects, such as tables, reports, forms, macros, stored procedures, triggers, and more.

Fixing “The low key value on page P_ID1...” Error

The physical storage of data stored in a MS SQL Server table can either be performed in a B-tree or heap structure. The B-tree structure consists of a two types of pages – parent page and child page. The parent page contains at least two child pages and keeps a record of every child page. In case the child page is at the last level (leaf-level), then all the records on that page should contain key values equal to or greater than the key value in the parent page. However, in case the child page is at tree level, then the key values should be greater than the key value in parent page. But, if these key values are not in accordance, then you might receive an error message that stops you from accessing its records. This mainly happens when the MS SQL Server database is logically or physically damaged. In such situations, you need to repair the database using a commercial SQL Database Recovery, if you have not maintained any backup.

Consider a practical case wherein you encounter the below error message while trying to access your MS SQL Server table:

“Table error: Object ID O_ID, index ID I_ID. The low key value on page P_ID1 (level LEVEL) is notCOMPARISON the key value in the parent P_ID2 slot S_ID.”

This is a severity level 16 error message. After the above error message pops up, the records saved in the table become inaccessible.

Cause:

The above error message appears due to corruption of MS SQL Server database.

Resolution:

To fix the above severity level 16 error message and to access the table records, you will need to follow the below steps:

View the system, application, and SQL Server logs, to identify physical corruption. After the damaged component is identified in the logs, change the component.

To identify logical damage, you will need to run DBCC CHECKDB command without a repair clause. After identifying the level of logical damage, run the same command with a suitable repair clause. However, if the error message persists even after running the above command, then you need to repair your database using an effective third-party SQL Database Repair application. Such SQL Recovery tools use effective repair techniques to repair logically damaged databases.

SQL Recovery is one powerful SQL Repair tool to repair MS SQL Server 2008, 2005, and 2000 databases. The software allows the database administrator to preview the repaired database before saving it at required location. It is designed for Windows 7, Vista, 2008, XP, 2003, and 2000.

DBCC CHECKDB Process Fails With “Error 8967” in SQL Server

Microsoft SQL Server is a widely used relational database management system, which stores all the data in MDF (Master Database File). It provides an inbuilt utility to check the physical and logical integrity of the objects in specified database through a series of operations. However, in some situations, this tool fails to check the integrity and consistency of the SQL Server database and the database remains inaccessible. In such situation, you may face critical data loss situations and need SQL Database Recovery.

As an example of this problem, consider the underwritten scenario:

You restore Microsoft SQL Server 2005 or Microsoft SQL Server 2008 database from backup.
You encounter errors while restoring the database and the restore process fails.
You restore database from same backup using CONTINUE_AFTER_ERROR option.

In such cases, when you use DBCC CHECKDB command-line utility on computer, which has MDF file, you get the below error:

“Msg 8967, Level 16, State 216, Server , Line 2
An internal error occurred in DBCC which prevented further processing. Please contact Customer Support.
DBCC results for ''.
Msg 8921, Level 16, State 1, Server , Line 1
Check terminated. A failure was detected while collecting facts. Possibly tempdb out of space or a system table is inconsistent. Check previous errors.”

Furthermore, you may see the below error in error log of SQL Server:

“2007-05-26 07:13:49.21 spid58 DBCC encountered a page with an LSN greater than the current end of log LSN () for its internal database snapshot. Could not read page (file id:page id), database '), LSN = (), type = 32, isInSparseFile = 1. Please re-run this DBCC command.”

Cause

You face this problem if DBCC CHECKDB command can't perform required checks for confirming database consistency due to severe corruption.

Solution

In such critical situations, you need to restore database from the latest backup. But, if the backup is either not available or not updated, SQL Server Recovery becomes need of hour.

You can recover your damaged SQL Server database using powerful MS SQL Recovery software. The applications are powerful enough to systematically scan whole database and extract all inaccessible objects from it. They offer easy SQL Recovery with simple and interactive user interface.

SQL Recovery software successfully repairs and restores damaged SQL Server database using powerful techniques. It is designed for Microsoft SQL Server 2008, 2005, and 2000. The software restores all of the MDF file objects, including tables, reports, forms, macros, stored procedures, and triggers.

CompactDatabase Process Fails on a Damaged MS SQL Server Database

Microsoft SQL Server is a popular relations database management system. It stores all your valuable data in the MDF (Master Database File). In case of corruption of the MDF file, due to virus infection, improper system shutdown, and other such reasons, the database become totally inaccessible. This behavior of MS SQL Server leads to significant data loss. In some cases of corruption, you can not even run the repair utility or open database connections after corruption. In such situations, you need to restore database from backup. If the backup itself is corrupt, SQL Database Recovery is required to sort out the problem.

In a practical scenario, you may get the below error message on a damaged SQL Server database in Microsoft SQL Server 2000 Windows CE Edition Query Analyzer when you try to open any connection:

“Error: 0x80004005 E_FAIL
Minor Error: (25017)
Description: Unspecified Error”

The error code in this error is SSCE_M_DATABASECORRUPTED (the SQL Server database file is corrupted or it is a Non-database file)

A eVB (Microsoft embedded Visual Basic) application, which uses CompactDatabase method isn't capable of compacting the damaged Microsoft SQL Server CD database. When you attempt to call CompactDatabase method, you may come across the below error message:

“Error: -2147467259
Compact”

To recover inaccessible data from the SQL Server database in such situations, you need to identify the root of the problem and then resolve it through SQL Server Recovery tools.

Cause

You may face this problem due to severe database corruption. Engine ActiveX code for the CompactDatabase attempts to start source database prior to compact source database. In case the start process fails, CompactDatabase process aborts. Thus you can't use CompactDatabase method on damaged database as the initialization method on damaged database fails in all situations.

Resolution

To prevent this problem from occurring in future, obtain latest service pack of Microsoft SQL Server. To fix the current database corruption problem, repair and restore the database using powerful third-party SQL Recovery software.

The applications are very easy to use with simple and rich graphical user interface. They do not demand sound and prior technical skills to perform SQL Recovery. With read-only and non-destructive conduct, these tools preserve integrity of your database.

SQL Recovery software repairs and restores damaged SQL Server database in all corruption scenarios. The software works well with Microsoft SQL Server 2008, 2005, and 2000. It restores all MDF file objects, such as tables, reports, forms, macros, stored procedures, constraints, and triggers.

Damaged Transaction Log Files May Cause SQL Server Database Corruption

In Microsoft SQL Server 2005 and Microsoft SQL Server 2000, every database includes at least one transaction log file and data file. MS SQL Server stores data physically in data file and details of the modifications that are performed on SQL Server database are stored in transaction log file. Logging the transaction details can't be turned off because transaction integrity is conceived an intrinsic and fundamental characteristic of MS SQL Server. In case of corruption or loss of transaction log file, you may come across SQL Server Database corruption. In such cases, you are required to perform SQL Database Recovery to retrieve data.

To prevent database corruption, one must prevent unexpected growth of transaction log files. To do so, follow the underwritten steps:

Set size of transaction log files to a large value for avoiding automatic expansion of transaction log files.
Configure automatic expansion of the transaction log files using memory units instead of percentage after evaluating optimum memory size.
Change recovery model. In case of data corruption or some disaster, you need to recover damaged database so you can maintain transaction integrity and data consistency of MS SQL Server database. Depending upon the significance of damaged database, you can go for any of the following database recovery models for determining how the data and information is backed up and what exposure you have to data loss:

Simple recovery model - To recover corrupt SQL Server database to most recent backup.
Full recovery model - Enables you to recover damaged database to a point when database failure occurred. It restores database using transaction log files.
Bulk-logged recovery model - It works in the same way as the Full recovery model does.

Backup transaction files regularly.
Do not continue running the uncommitted transactions.
Defragment indexes.

In case the above methods can not help you, and transaction log file gets damaged, you may face severe database corruption. In such situations, MS SQL Recovery is the only way to repair and restore damaged database.

The MS SQL Recovery applications use advanced database scanning techniques to thoroughly scan the damaged database and extract all data from it. They Recover SQL database in a safe and easy way with their read-only conduct and interactive graphical user interface.

SQL Recovery software safely repair and restores damaged SQL Server database in all cases of corruption. The software works well with MS SQL Server 2008, 2005, and 2000. It restores all damaged and inaccessible database objects, such as tables, reports, forms, macros, triggers, and stored procedures.

Tips to resolve “Page P_ID1 was not seen in the scan...” Error Message

Tables in MS SQL Server contain thousand of records that are contained in more than one partitions. These partitions save data rows in either B-tree or heap structure. The table records saved in B-tree can be retrieved faster than in heap tree. The reason behind fast retrieval is that the data pages in B-tree are connected in a doubly-linked list. While the navigation process is faster in B-tree structure, the process might halt if any child page points to a wrong index page or is not pointing to any page. Such situations primarily occur when your database is corrupted. In such circumstances, a database user encounters an error message that makes the data saved in the table inaccessible. To access the records in such cases, the user can restore table from an updated backup or run DBCC CHECKDB command. However, if both the parameters fail to resolve, then the user needs to opt for a commercial SQL Database Recovery product.

Consider a practical example to elaborate the above problem where you encounter the below error message while accessing a MS SQL table:

“Table error: Object ID O_ID, index ID I_ID. Page P_ID1 was not seen in the scan although its parent P_ID2 and previous P_ID3 refer to it. Check any previous errors.”

This is a severity level 16 error message, that pops up and does not allow you to access the table records.

Cause:

The above error message appears when a child page (P_ID1) can not be seen even though the index page is pointing to the child page. This above situation occurs when the database is either logically or physically corrupted.

Resolution:

Corruption due to physical damages can be resolved by changing the damaged system component.
Corruption owing to logical reasons can be rectified by running DBCC CHECKDB command. But in case, the error message persists after executing DBCC CHECKDB command, then you will need to use third-party MS SQL Recovery tool to repair your table. Such SQL Repair application scan the database and repair it to the fullest.

SQL Recovery application is used to repair logically corrupted SQL database, regardless of its cause of corruption. The SQL Database Repair tool supports repair of every SQL Server database component built in MS SQL Server 2008, 20005, and 2000. It supports Windows 7, Vista, 2008, XP, 2003, and 2000.

False Positive and Database Consistency in Microsoft SQL Server

Are you facing various instances of the 'False Positive' on your Microsoft SQL Server when you run DBCC CHECKDB statement for checking database consistency? The problem may occur due to inconsistency of the MDF (Master Database File) of MS SQL Server. Database inconsistency can be due to numerous reasons, such as database corruption, missing database objects, and more. In all such cases, the database becomes completely unusable and you face severe data loss problems. In such circumstances, it becomes essential to perform SQL Database Recovery to overcome the problem.

For instance, when you run DBCC CHECKDB statement on your SQL Server database, it gives consistency errors in database tables. However, if you run DBCC CHECKTABLE statement to repair the table and fix inconsistency problems, it does not display any errors. When you face a false positive situation, you get either of the below errors:

“DBCC CHECKDB is performing an exhaustive search of indexes for possible inconsistencies.”

Or

“SQL Server has encountered 1 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file in database .”

At the same time, Application Event Log of MS SQL Server may contain entries similar to the following ones:

Msg 8978, Sev 16, State 1, Line 1 : Table error: Object ID 1789795471, index ID 1, partition ID 72057602467495936, alloc unit ID 72057602585395200 (type In-row data). Page (1:2387522) is missing a reference from previous page (1:2387521). Possible chain linkage problem. [SQLSTATE 42000]
Msg 8958, Sev 16, State 1, Line 1 : repair_allow_data_loss is the minimum repair level for the errors found by DBCC CHECKDB . [SQLSTATE 01000]

Cause

The problem occurs due to inconsistency or corruption in the MDF file. It may be due to unexpected system shutdown, virus infection, and other such reasons.

Resolution

You can get your database in working state by restoring it from an updated backup. After restoring the database, you must run database defragmentation. However, if the backup is not current, then only SQL Server Recovery can help you to extract inaccessible data.

Effective and absolute recovery is possible with SQL Recovery software. These are powerful third-party tools, which scan whole database and retrieve all damaged and inaccessible data from it. You need not have sound technical skills to use these MS SQL Recovery software as they have simple graphical user interface.

SQL Recovery is the most advanced utility that ensures perfect recovery of damaged SQL Server database. The software repairs and restores MDF files of Microsoft SQL Server 2008, 2005, and 2000. It recovers all SQL Server database objects such as tables, reports, forms, triggers, and stored procedures.

Fixing “Could not repair this error” Error

Database corruption is unfortunate for any database administrator. Damage in database mainly occurs due to metadata structure corruption, improper shutdown of system or server, or malicious software like virus. Although most logical corruption in SQL Server database can be surmounted using DBCC CHECKDB repair command, there are some situations wherein the command fails to repair. These situations occur when the database is severely corrupted and beyond the repair limits of DBCC CHECKDB. In such cases, it is advisable to restore database from an updated backup. But if the backup is unavailable or deficient, then the administrator needs to search for a third-party SQL Database Recovery application.

To illustrate above problem, consider a database administrator receives a database corruption error message while trying to access database. However, on trying to repair database using DBCC CHECKDB command, another error message is encountered:

“Could not repair this error.”

This is severity level 10 error message. As the error message states, the in-built repair command is unable to repair the database. After the above error message flashes, the data saved in the database becomes inaccessible. In addition, the same error message is encountered on every attempt to repair database, using different repair parameters.

Cause:

The repair command fails to repair the database because:

There is severe damage in PFS (Page Free Space), GAM (Global Allocation Map), or SGAM (Shared Global Allocation Page) pages.
Database corruption requires rebuilding of clustered indexes for all or few system tables.

Resolution:

To surmount the above error message and to access the database records, you will need to:

Restore the database from an updated backup.
In case of no backup availability, you need to opt for a commercial SQL Database Repair product.

Such SQL Recovery applications use advanced scanning and repairing techniques to repair any logically corrupted database. These tools can be installed from the Internet and do not require any technical knowledge to perform repair process. Such repair utilities do not make even a single change in the original database.

SQL Recovery comprehensively repairs and restores all SQL Server databases, irrespective of their cause of damage. The SQL Repair utility supports repair of MS SQL Server 2008, 20005, and 2000 databases. It is compatible with Windows 7, Vista, 2008, XP, 2003, and 2000 operating systems.

Tips To Resolve “offset 0xADDRESS is invalid” Error Message

A severity level 16 table error message occurs, while trying to open a MS SQL table, when the database table gets badly corrupted. Few causes of severe corruption of a SQL table are improper system/server shutdown, virus infection, metadata structure damage, and human mistakes. The database table records become inaccessible when a database user encounters error message with so much severity. An easy way to access table records post the above error message, is by restoring data from an updated backup. However, if the backup file is unobtainable or deficient, then a user can use DBCC CHECKDB command to repair the table. But, running this command might lead to loss of records saved in the table. To prevent any loss of records, a database user needs to repair his/her table using a third-party SQL Recovery application.

The above situation can be explained better by following severity level 16 error message:


“Table error: Object ID O_ID, index ID I_ID, page P_ID. Test (TEST) failed. Slot S_ID, offset 0xADDRESS is invalid.”

This error message flashes on your screen when you try to open a MS SQL Server table. After the error message pops up, the table can not be opened. The records saved in the table become inaccessible.

Cause:

The above error message appears when table is corrupt, either through logical crash or physical damage.

Resolution:

To get rid of the above severity level 16 error message, you need to identify the cause of corruption. To do so follow the below mentioned steps:

You should review the Server, system, and application logs. In case you find any entry related to a particular damaged hardware component, you should change that system component.

To analyze logical failure, you can run DBCC CHECKDB command without a repair clause. This helps you to identify the exact level of corruption. After doing so, run the same command with an applicable repair clause.

In case logical corruption persists, you should opt for a commercial SQL Database Recovery software. A SQL Repair application repairs logically damaged databases without harming the original database.

SQL Recovery repairs logically corrupt MS SQL Server 2008, 20005, and 2000 databases in a few mouse clicks. The advanced scanning methods used by the software ensure maximum repair of almost all database objects. The read only SQL Repair utility is designed for Windows 7, Vista, 2008, XP, 2003, and 2000.

Insufficient Disk Space During Upgrade May Corrupt SQL Server Database

You may encounter SQL Server object or database corruption if you fail to provide enough disk space for the database growth while upgrading Microsoft SQL Server database. This situation may damage sysdepends table in model database and the process may stop responding. You do not receive any error message when this process fails and table corruption occurs. After corruption, the database may become inaccessible and you encounter data loss. In order to retrieve inaccessible data from MDF (Master Database File) database of SQL Server, you need to opt for MS SQL Recovery alternatives.

The sysdepends is a SQL Server database table, which provides dependency relationship information between persistent objects of database. The persistent objects can be providers (database objects depend upon them) and/or dependents (they depend upon other database objects).

Root of the problem

This problem occurs if data file is nearly full (only a few pages are free) and file growth on data file is adjusted to 0% (percent). In this case, the upgrade process doesn't have sufficient scape to finish the upgrade of database. In such circumstances, the database is left in partially upgraded and corrupt state. To Recover SQL database in these situations, you need to sort out this behavior.

Solution

To fix the above mentioned problem:

Replace 'model' database. Follow the below mentioned steps to replace it:
Restore a good copy of SQL Server model database to affected server. If you encounter any error regarding 'msdb' database, you can ignore it.
Copy in the model database from new MS SQL Server installation. After copying in a new model database, you may lose the changes that you have made to previous model database.
Restore a model database of the earlier version of SQL Server and increase the size of database. Add new database to SQL Server installation.
Re-run the SQL Server upgrade process.

The above method helps you to fix model database corruption, but can not repair the damaged SQL Server database. To retrieve data from MDF file, SQL Database Recovery is required.

Recovery is best possible with the help of advanced MS SQL Recovery software. These are third-party utilities, which thoroughly scan entire database to extract all inaccessible or damaged data from it.

SQL Recovery is a read-only and easy to use software for absolute recovery of damaged MDF database. The software works well with Microsoft SQL Server 2008, 2005, and 2000. It restores all database objects such as tables, reports, forms, constraints, stored procedures, and triggers.