Script to kill all connections to a database (More than RESTRICTED_USER ROLLBACK)

Question

Updated

For MS SQL Server 2012 and above

USE [master];

DECLARE @kill varchar(8000) = '';  
SELECT @kill = @kill + 'kill ' + CONVERT(varchar(5), session_id) + ';'  
FROM sys.dm_exec_sessions
WHERE database_id  = db_id('MyDB')

EXEC(@kill);

For MS SQL Server 2000, 2005, 2008

USE master;

DECLARE @kill varchar(8000); SET @kill = '';  
SELECT @kill = @kill + 'kill ' + CONVERT(varchar(5), spid) + ';'  
FROM master..sysprocesses  
WHERE dbid = db_id('MyDB')

EXEC(@kill); 

USE master
GO
ALTER DATABASE database_name
SET OFFLINE WITH ROLLBACK IMMEDIATE
GO

Ref: http://msdn.microsoft.com/en-us/library/bb522682%28v=sql.105%29.aspx

You can get the script that SSMS provides by doing the following:

1. Right-click on a database in SSMS and choose delete
2. In the dialog, check the checkbox for "Close existing connections."
3. Click the Script button at the top of the dialog.

The script will look something like this:

USE [master]
GO
ALTER DATABASE [YourDatabaseName] SET  SINGLE_USER WITH ROLLBACK IMMEDIATE
GO
USE [master]
GO
DROP DATABASE [YourDatabaseName]
GO

Little known: the GO sql statement can take an integer for the number of times to repeat previous command.

So if you:

ALTER DATABASE [DATABASENAME] SET SINGLE_USER
GO

Then:

USE [DATABASENAME]
GO 2000

This will repeat the USE command 2000 times, force deadlock on all other connections, and take ownership of the single connection. (Giving your query window sole access to do as you wish.)