查看死锁的SQL语句

use master
go
declare @spid int,@bl int
DECLARE s_cur CURSOR FOR
select  0 ,blocked
from (select * from sysprocesses where  blocked>0 ) a
where not exists(select * from (select * from sysprocesses where  blocked>0 ) b
where a.blocked=spid)
union select spid,blocked from sysprocesses where  blocked>0
OPEN s_cur
FETCH NEXT FROM s_cur INTO @spid,@bl
WHILE @@FETCH_STATUS = 0
begin
if @spid =0
select ' 引起数据库死锁的是: '+ CAST(@bl AS VARCHAR(10)) + ' 进程号, 其执行的SQL 语法如下'
else
select ' 进程号SPID ：'+ CAST(@spid AS VARCHAR(10))+ ' 被' + ' 进程号SPID ：'+ CAST(@bl AS VARCHAR(10)) +' 阻塞, 其当前进程执行的SQL 语法如下'
DBCC INPUTBUFFER (@bl )
FETCH NEXT FROM s_cur INTO @spid,@bl
end
CLOSE s_cur
DEALLOCATE s_cur

exec sp_who2

运行sp_who2 ,看blk by 栏， 如果这栏不是空白， 有一个数字， 这就是造成阻塞（blocking）的线程id. 然后运行DBCC Inputbuffer(线程id), 你就可以看见这个线程在干什么。

来源：http://club.techtarget.com.cn/showtopic-42012-1.aspx