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------如何检测死锁---------

2009-12-29 20:50:00.0 table sql 数据库  
导读:use mastergocreate procedure sp_who_lockasbegindeclare @spid int,@bl int, @intTransactionCountOnEntry  int,        @intRowcount    int,        @intCountProperties   int,        @intCounter    int crea...。。。

use master
go
create procedure 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 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

 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
 

(编辑: fredrickhu)

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