This means that all table records will be deleted:. If you have designed a proper backup solution, the data can be easily recovered by restoring the database back to the specific point in time before executing the DELETE statement. From the Restore Database window, the SQL Server will return the complete backup chain that is taken from that database.
If you know the exact file that is taken directly before the data deletion, you can stop at that specific file, as shown below:. But if you are aware of the exact time of executing the DELETE statement, you can restore the database back to that specific point in time before the DELETE statement execution, without the need to know which Transaction Log file contains that point in time.
This can be achieved by clicking on the Timeline option, and specify the time, as shown below:. If there is a single active log record in a VLF, the overall VLF will be considered as active log and cannot be truncated.
The SQL Server Transaction Log, for the database that is configured with the Simple recovery model, can be truncated automatically if:. Change the database recovery model to Simple For example, if we change the recovery model of the below database to Simple and perform a Checkpoint directly, the Transaction log will be truncated automatically and will be available for reuse as shown below:.
Available only prior SQL Server When the database Transaction Log file is truncated, the truncated space will be freed up and become available for reuse. But the Transaction Log file size will not be decreased, as the truncated space will not be deallocated. On the other hand, the process of recovering the Transaction Log space by deallocating the free VLFs and returning it back to the operating system is called a Transaction Log Shrink. The Transaction Log file shrink operation can be performed only if there is free space on the Transaction Log file, that can be available most of the time after truncating the inactive part of the Transaction Log.
A shrink operation will be useful after performing an operation that creates a large number of Transaction Logs. Expand Databases on the left and select the Softalk Business Server database. Click on the New Query button under the menu bar. SQL Server will truncate the log file. Please see the SQL Server documentation for more information.
Yes No. You probably ought not use this for production databases. Rask Rask 6 6 silver badges 9 9 bronze badges. Never do this!
There can be data in the log not yet committed to the data file. You would lose such data. If, in your answer, you warn not to try it in production, it's not worth posting at all. I disagree with the downvoters -- it is an option. Administrators just need to understand their scenario.
For example -- there will be no 'uncommitted' data if there are no open transactions. This is the only solution that worked for me. My drive was filled up and I couldn't backup or shrink and nothing else seemed to be working. I agree; it's not a best practice but it's valuable a tool to have if you have no other options such as Brian's scenario.
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