數據庫名:test1
1. 查詢數據庫當前連接
select * from master.sys.sysprocesses where dbid = db_id('test1')

2. 斷開指定連接
語法:kill spid號
如:
kill 58
3. 斷開所有連接
declare @d varchar(8000)
set @d= ' '
select @d=@d+ ' kill '+cast(spid as varchar)+char(13)
from master.sys.sysprocesses where dbid=db_id('test1') exec(@d)
