Thứ Ba, 14 tháng 10, 2014

Set a Database to Single-user Mode

Using SQL Server Management Studio


To set a database to single-user mode

  1. In Object Explorer, connect to an instance of the SQL Server Database Engine, and then expand that instance.
  2. Right-click the database to change, and then click Properties.
  3. In the Database Properties dialog box, click the Options page.
  4. From the Restrict Access option, select Single.
  5. If other users are connected to the database, an Open Connections message will appear. To change the property and close all other connections, click Yes.
You can also set the database to Multiple or Restricted access by using this procedure. For more information about the Restrict Access options, see Database Properties (Options Page).

Using Transact-SQL


To set a database to single-user mode

  1. Connect to the Database Engine.
  2. From the Standard bar, click New Query.
  3. Copy and paste the following example into the query window and click Execute. This example sets the database to SINGLE_USER mode to obtain exclusive access. The example then sets the state of the AdventureWorks2012 database to READ_ONLY and returns access to the database to all users.The termination option WITH ROLLBACK IMMEDIATE is specified in the first ALTER DATABASE statement. This will cause all incomplete transactions to be rolled back and any other connections to the AdventureWorks2012 database to be immediately disconnected.
Transact-SQL
USE master;
GO
ALTER DATABASE AdventureWorks2012
SET SINGLE_USER
WITH ROLLBACK IMMEDIATE;
GO
ALTER DATABASE AdventureWorks2012
SET READ_ONLY;
GO
ALTER DATABASE AdventureWorks2012
SET MULTI_USER;
GO

http://msdn.microsoft.com/en-us/library/ms345598.aspx
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