What is truncate log on checkpoint?

What is truncate log on checkpoint?

Sign in to vote. Auto shrink is all about periodic shrinking and where as when the the option truncate log on checkpoint is set true a checkpoint truncates the inactive part of the log when the database is in log truncate mode. truncate log on checkpoint is the only option you can set for the master database.

How do I truncate a SQL log?

Truncate the transaction log

1. Right-click the database and select Properties -> Options.
2. Set the recovery model to Simple and exit the menu.
3. Right-click the database again and select Tasks -> Shrink -> Files.
4. Change the type to Log .
5. Under Shrink action, select Reorganize pages before releasing unused space and click OK.

What is log shipping in SQL?

SQL Server Log shipping allows you to automatically send transaction log backups from a primary database on a primary server instance to one or more secondary databases on separate secondary server instances. The transaction log backups are applied to each of the secondary databases individually.

How do I view SQL logs?

View Log Files

1. Right-click SQL Server Logs, point to View, and then click either SQL Server Log or SQL Server and Windows Log.
2. Expand SQL Server Logs, right-click any log file, and then click View SQL Server Log. You can also double-click any log file.

How is the log truncation honored in SQL Server?

In SQL Server 2000 and up, SQL Server has a concept of recovery model that defines how the log truncation is honored e.g. In simple recovery – only a checkpoint will truncate the log where as in full recovery mode – only a log backup will truncate the log.

When do automatic checkpoints not cause log truncation?

By contrast, under the full and bulk-logged recovery models, once a log backup chain has been established, automatic checkpoints do not cause log truncation. For more information, see The Transaction Log (SQL Server).

Where to find trunc.log in SQL Server 2008R2?

You can still see (atleast in SQL Server 2008R2) trunc. log on chkpt. using sp_dboption, and you can set the database option as well Msg 2812, Level 16, State 62, Line 1 Could not find stored procedure ‘sp_dboption’.

How is checkpoint truncate in simple recovery mode?

In simple recovery – only a checkpoint will truncate the log where as in full recovery mode – only a log backup will truncate the log. If you want to understand more about Transaction Log Management then refer to Stairway to Transaction Log Management