SQL Server 中断开连接到指定数据库的所有连接

常用的情形是在部署测试数据库时需要通过SQL代码自动重新创建数据库,在删除的时候往往会发生错误,错误信息一般会指出目前有用户连接到这个数据库上,因此不能删除.

实现的方式是通过查询指定数据库中活跃的 SPID, 然后一一删除.

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

USE MASTER
GO

IF OBJECT_ID('dbo.USP_KillSPID','P')IS NOT NULL
DROP PROCEDURE dbo.USP_KillSPID
GO

CREATE PROCEDURE dbo.USP_KillSPID
@DatabaseName VARCHAR(255)
AS

DECLARE @SPID NVARCHAR(255)
DECLARE curDBLogin CURSOR FOR
SELECT CAST(SPID AS VARCHAR(255)) AS SPID
FROM MASTER..sysprocesses
WHERE dbid = DB_ID(@DatabaseName)

OPEN curDBLogin
FETCH NEXT FROM curDBLogin INTO @SPID

WHILE @@FETCH_STATUS = 0
   BEGIN
      IF @SPID <> @@SPID
          EXEC('KILL '+ @SPID )
      FETCH NEXT FROM curDBLogin INTO @SPID
   END

CLOSE curDBLogin
DEALLOCATE curDBLogin
GO

-- Kill logins of database
EXEC dbo.USP_KillSPID 'CommonControlDB' 

-- Drop itself
DROP PROCEDURE dbo.USP_KillSPID