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Showing posts with label Error 8921. Show all posts
Showing posts with label Error 8921. Show all posts

Monday, January 3, 2011

What should you do when CHECKTABLE ends abruptly resulting in Error 8921 in MS SQL Server

In MS SQL Server 2000, there are various tools to check the integrity of the database pages. One of these tools is CHECKTABLE that checks various types of pages including data, index, text, ntext, and image of the selected table. However, at times this tool is unable to run and ends abruptly because of corruption in the MDF (Master Database File) file. On such occasions, you should use suitable methods to repair SQL database. If none of the methods works in this scenario, then I would recommend you to use a third-party SQL repair software to repair SQL database.

Consider a scenario wherein you are using the CHECKTABLE tool when you get the following error message in MS SQL Server 2000 database:

CHECKTABLE terminated. A failure was detected while collecting facts. Possibly tempdb out of space or a system table is inconsistent. Check previous errors.”

Cause:

The CHECKTABLE tool abruptly ended because of encountering some error because of corruption issues in a system table.

Resolution:

To overcome this problem, you should look for ways to repair MDF file. For this, the following methods can be performed:

  • Addressing hardware corruption issues: As is seen in such cases, most instances occur because of corruption in the hardware parts. To overcome hardware corruption, you can adopt following measures:

    • Running hardware diagnostics and fixing any error that you find

    • Checking error logs and check if any error has occurred because of faulty hardware components

    • Swapping the hardware components to narrow down to find out the exact error

    • Formatting the hard drives and reinstalling the operating system

  • Using database backup: If the hardware parts are alright, then use the database backup if it is updated and clean.

  • Running DBCC CHECKDB: If the database backup does not provide solution, then run the DBCC CHECKDB tool with the suggested repair clause.

Now, try to run the CHECKTABLE tool again. If the problem does not appear, then it means that the MDF file is repaired. However, if the problem persists then there is a need to use a third-party MDF file repair software. Non-destructive repair techniques and simple yet interactive interface are some of the advantages of using these MS SQL repair tools.

Thursday, November 11, 2010

Rectifying Error 8921 in SQL Server


Rectifying Error 8921 in SQL Server
MS SQL Server provides the DBCC statements that are used to check and fix the databases for physical and logical consistency. There are various types of DBCC statements that you can use for the any particular purpose. However, at times these commands are not able to perform. The reason behind is that these database may have corrupted because of various reasons such as virus infections, hardware issues, human errors, etc. In such cases, you should use a third-party SQL repairsoftware to repair SQL database.
Consider a scenario wherein you are working on an SQL Server 2000 database. In this, you use the DBCC CHECKTABLE command on a particular table to make it more scalable and achieve parallelism. However, the command failed to execute. An error message is displayed, that is:
“CHECKTABLE terminated. A failure was detected while collecting facts. Possibly tempdb out of space or a system table is inconsistent. Check previous errors.”
Cause:
The root cause of this error message is that the internal query that was used by DBCC failed to deliver the desired result. It may be possible that the tempdb database has gone out of space or there is an inconsistent system table.
Resolution:
To resolve this error message, you should perform the following methods, preferably in the given order:
Check for hardware issues: You should run hardware diagnostics and check whether the issue is raised because of any malfunctioning hardware component. You can also check the error logs, or swap the hardware components to zero in on the source of the issue. Also, you can also consider reformatting the disks and reinstalling the operating system.
Restore from backup: You should check if the backup is updated and clean. If yes, then you should restore the database from its backup.
Run DBCC CHECKDB: You should run DBCC CHECKDB first without a repair clause, and then with the repair clause after determining the extent of corruption.
The aforementioned methods will be able to resolve the error message and you can access the database properly. However, if it is not so then you should use a third-party SQL data recovery software to repair the corrupted database. Such read-only tools are able to repair SQL databases by using fast yet sophisticated scanning algorithms thereby ensuring safe recovery of the corrupted database.
Stellar Phoenix SQL Recovery is an MDF repair software that repairs SQL database from all instances of corruption. It supports SQL repair of the corrupt databases created in SQL Server 2000, 2005, and 2008. This MS SQL repair tool is capable of repairing various database objects such as stored procedures, queries, triggers, database constraints, user defined data types, etc. It is compatible with Windows 7, Vista, Server 2003, XP, and Server 2000.
My name is Mark Willium, I have done Ph.D in computer science and currently doing research on how to recover and repair corrupted sql database. During research found many repair & recovery software for SQL database, some of them are sql server recovery, mdf recovery, sql repair,mdf repair and many more.

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