用SQL语句断开某个数据库的所有活动连接

use master
go
if exists(select * from dbo.sysobjects where id = object_id(N'[dbo].[P_KillConnections]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[P_KillConnections]
GO
create proc P_KillConnections
@dbname varchar(200)
as
declare @sql nvarchar(500)
declare @spid nvarchar(20)
declare #tb cursor for
select spid=cast(spid as varchar(20)) from master..sysprocesses where dbid=db_id(@dbname)
open #tb
fetch next from #tb into @spid
while @@fetch_status=0
begin
exec('kill '+@spid)
fetch next from #tb into @spid
end
close #tb
deallocate #tb
go
--Usage
exec P_KillConnections 'DB'