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Set the auto_close database option to off

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Applies to: SQL Server

This rule checks whether the AUTO_ CLOSE option is set OFF. When AUTO_CLOSE is set ON, this option can cause performance degradation on frequently accessed databases because of the increased overhead of opening and closing the database after each connection. AUTO_CLOSE also flushes the procedure cache after each connection.

Best practices recommendations

If a database is accessed frequently, set the AUTO_CLOSE option to OFF for the database.

For more information

ALTER DATABASE SET Options (Transact-SQL)

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