Sql server truncate ldf file

This is a piece of code that I use when the Log file gets too big: -- check the size of the files. Francesco Mantovani Francesco Mantovani 8 8 silver badges 13 13 bronze badges. Do you have appropriate file size and auto growth settings matching with your transaction load profile and transaction count? Do you have a log back up plan suited to your recovery model and disaster recovery scenario? Is there any long running transaction occupying transaction logs? How many VLF file exist in transaction log file?

The Overflow Blog. Podcast Helping communities build their own LTE networks. Podcast Making Agile work for data science. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Linked 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 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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If you try to take a Transaction Log backup from a database with no Full backup taken previously, the backup operation will fail with the error message below:. Once the database Full backup is performed, we will start taking the Transaction Log backups for the database.

The first Transaction Log backup will take a backup for all the transactions that occurred in the database since the last Full backup. On the other hand, the Transaction Log backups that follows the first Transaction Log backup will take backup for all transactions that occurred in the database since the point that the last Transaction Log backup stopped at.

This backup chain is important to recover the database to a specific point in time, in the case of any mistakenly performed change or database corruption. The frequency of the Transaction Log backup depends on how important your data is, the size of the database and what type of workload this database serves. In the heavily transactional databases, it is recommended to increase the frequency of the Transaction Log backup, in order to minimize the data loss and truncate the Transaction Logs to make it available for reuse.

If the database is damaged, it is recommended to create a tail-log backup to enable you to restore the database to the current point in time. A tail-log backup is used to capture all log records that have not yet been backed up. This will help in preventing any data loss and to keep the log chain complete. This means that all table records will be deleted:.