Thursday, December 3, 2009

Database Suspect due to Problems while Transaction Commit

A commit transaction in SQL Server is primarily used to make all the changes permanent which you performed since the start of transaction. Once you run the commit statement, all the resources held by the transaction are freed and the value for TRANCOUNT is set to “0”. Interruption while processing of commit transaction can result into making your database suspect. In such situations, your database becomes unmountable and the records stored in it become inaccessible. For complete access of database records after it has been corrupted, you will need to restore the data from an updated database backup. However, if the database backup is corrupted or unavailable, then you will need to use advanced third-party SQL Recovery application that can systematically repair your corrupted database.

A commit transaction can be halted due to below reasons:

A SQL Server CE application closes unexpectedly.
Windows CE device is reset.
SQL Server CE does not respond.

Your database is marked suspect after any of the above problem occurs. Furthermore, this leaves your database in an unrecoverable state. The above problems occur either due to power failure or an explicit reset during a transaction. Below are some prevention measures that enable you to minimize the effect of the problem:

Ensure that you have maintained a backup copy of your SQL Server CE database files.
To prevent database users from performing an explicit reset while a data manipulation process is in progress, add a progress bar in your application.
Always try to keep your transactions short.


To make your database records accessible, you will need to use Compact method. While the method repairs the database in many cases, chances of database corruption still exists. In such situations, the only way left to repair your database is by using advanced SQL Database Repair application.

These database repair utilities employ intensive scanning methods to repair your corrupted database and recover almost all database components. With highly-interactive user documentation, the MS SQL Repair software guides you through a complete repair process. The non-destructive software provides safe recovery of database components and provides an option to save them on default or new destination.

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