Is auto close on SQL Server?
Hence it is not a best practice to turn AUTO CLOSE feature ON for a SQL Server Database in Production or Non-Production Environments. AUTO CLOSE is a database level setting and hence it cannot be configured at SQL Server Level. As a best practice AUTO CLOSE option should remain OFF (FALSE) for all the user databases.
What is SQL auto close?
AUTO_CLOSE is a database option available in SQL Server. When this option is turned ON, a database will be shut down after all resources that reference this database are freed.
How do I turn off auto close in SQL Server?
In SQL Server Management Studio, you can right-click on each database, select “Properties”, and choose the “Options” tab. Set Auto Close to false and click OK.
When should a SQL database be closed?
We strongly recommend that you always close the connection when you are finished using it so that the connection will be returned to the pool.
What is parallel redo?
Starting up database ‘Database’. Parallel redo is started for database ‘Database’ with worker pool size [1]. Parallel redo is shutdown for database ‘Database’ with worker pool size [1]. These messages happen at the same time, and repeat continuously every second.
How do I set the AutoClose database option to turn off?
You can go to Your Database and Right Click on it. Click on Properties on the right, click menu and it will bring up the following screen. Over here you should change the Auto Close value to FALSE.
What happens when database is closed?
Closing a database causes it to become unusable until it is opened again. It is recommended that you close any open cursors before closing your database. Active cursors during a database close can cause unexpected results, especially if any of those cursors are writing to the database.
When should I close database connection?
Any new connection you establish that has exactly the same connection string will be able to reuse the connection from the pool. We strongly recommend that you always close the connection when you are finished using it so that the connection will be returned to the pool.
What is Parallel_redo_worker_wait_work?
(Republishing, or using this info in a commercial product/website, is prohibited without permission. Description: This wait type is when one of the parallel threads performing redo for an Availability Group replica is waiting for some work to do.
What does auto close do in SQL Server?
AUTO_CLOSE is a database option available in SQL Server. When this option is turned ON, a database will be shut down after all resources that reference this database are freed. After a database is shutdown, next time an application attempts to use the database, the database has to be first opened and then get the status to online.
Is there a place for AutoClose in SQL Server databases?
When the SQL Server service starts, the default action is for it to open all the attached database files, and to run recovery on those databases. The files are closed when SQL Server shuts down. If AutoClose is enabled, SQL Server doesn’t open the files on startup, but waits until someone tries to access the database.
Is it best practice to auto close database?
Hence it is not a best practice to turn AUTO CLOSE feature ON for a SQL Server Database in Production or Non-Production Environments. AUTO CLOSE is a database level setting and hence it cannot be configured at SQL Server Level. As a best practice AUTO CLOSE option should remain OFF (FALSE) for all the user databases.
What happens when a database is closed in SQL Server?
When a database is closed, SQL Server will flush the data cache and execution plans from the Server Memory. It results in queries taking longer time to execute. Hence it is not a best practice to turn AUTO CLOSE feature ON for a SQL Server Database in Production or Non-Production Environments.