查找数据库阻塞和死锁

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原文链接：http://www.cnblogs.com/sp5i5s/archive/2012/01/12/2320689.html

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#数据库

CREATE  procedure [dbo].[sp_who_lock]
as
begin
declare @spid int,@bl int,
@intTransactionCountOnEntry  int,
@intRowcount    int,
@intCountProperties   int,
@intCounter    int
create table #tmp_lock_who (id int identity(1,1),spid smallint,bl smallint)

IF @@ERROR<>0 RETURN @@ERROR

insert into #tmp_lock_who(spid,bl) select  0 ,blocked
from (select * from master..sysprocesses where  blocked>0 ) a
where not exists(select * from (select * from master..sysprocesses where  blocked>0 ) b
where a.blocked=spid)
union select spid,blocked from master..sysprocesses where  blocked>0

IF @@ERROR<>0 RETURN @@ERROR

-- 找到临时表的记录数
 select  @intCountProperties = Count(*),@intCounter = 1
from #tmp_lock_who

IF @@ERROR<>0 RETURN @@ERROR

if @intCountProperties=0
select '现在没有阻塞和死锁信息' as message

-- 循环开始
while @intCounter <= @intCountProperties
begin
-- 取第一条记录
  select  @spid = spid,@bl = bl
from #tmp_lock_who where id = @intCounter
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 )
end

-- 循环指针下移
 set @intCounter = @intCounter + 1
end

drop table #tmp_lock_who

return 0
end