Friday, January 29, 2010

Clustered Index Corruption in SQL Server Database

You may receive the following error messages in SQL Server:

Server: Msg 3624, Level 20, State 1, Line 1
Location: recbase.cpp:1378
Expression: m_offBeginVar <>
SPID: 51
Process ID: 948
Connection Broken
Or
[Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionCheckForData (CheckforData()).
Server: Msg 11, Level 16, State 1, Line 0
General network error. Check your network documentation.
Connection Broken

These error messages mostly receive when the user attempts to insert a column to the existing table through INSERT command. If the applied transaction also retains the foreign key reference to the column, which has been affirmed as the exclusive clustered or non-clustered index key on the table, then this could be the reason of this problem. In this situation, the clustered index gets corrupted or damaged. When the added column attempt gets failed, the clustered index can get damaged and all of the data may become inaccessible.

If the clustered index got corrupt, then, no report will be generated by running the DBCC CHECKDB, but the access performance of the database gets degraded and hence you need an instant SQL recovery through the trustworthy tool and choose the best sql database repair software for better results.

The best way out to SQL repair totally, is to make use of the third party applications which are well suited for this situation. In fact, they avail a secure MDF recovery and so are recommended for the best part. With the intuitive user interface, this MDF repair utility helps you to work with its easy process.

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