查询Sqlserver数据库死锁的一个存储过程分享

使用sqlserver作为数据库的应用系统,都避免不了有时候会产生死锁， 死锁出现以后，维护人员或者开发人员大多只会通过sp_who来查找死锁的进程，然后用sp_kill杀掉。利用sp_who_lock这个存储过程，可以很方便的知道哪个进程出现了死锁，出现死锁的问题在哪里.

创建sp_who_lock存储过程

CREATE procedure sp_who_lock 
as 
begin 
 declare @spid int 
 declare @blk int 
 declare @count int 
 declare @index int 
 declare @lock tinyint 
 set @lock=0 
 create table #temp_who_lock 
 ( 
 id int identity(1,1), 
 spid int, 
 blk int 
 ) 
 if @@error<>0 return @@error 
 insert into #temp_who_lock(spid,blk) 
 select 0 ,blocked 
 from (select * from master..sysprocesses where blocked>0)a 
 where not exists(select * from master..sysprocesses where a.blocked =spid and blocked>0) 
 union select spid,blocked from master..sysprocesses where blocked>0 
 if @@error<>0 return @@error 
 select @count=count(*),@index=1 from #temp_who_lock 
 if @@error<>0 return @@error 
 if @count=0 
 begin 
 select '没有阻塞和死锁信息' 
 return 0 
 end 
 while @index<=@count 
 begin 
 if exists(select 1 from #temp_who_lock a where id>@index and exists(select 1 from #temp_who_lock where id<=@index and a.blk=spid)) 
 begin 
 set @lock=1 
 select @spid=spid,@blk=blk from #temp_who_lock where id=@index 
 select '引起数据库死锁的是: '+ CAST(@spid AS VARCHAR(10)) + '进程号,其执行的SQL语法如下' 
 select @spid, @blk 
 dbcc inputbuffer(@spid) 
 dbcc inputbuffer(@blk) 
 end 
 set @index=@index+1 
 end 
 if @lock=0 
 begin 
 set @index=1 
 while @index<=@count 
 begin 
 select @spid=spid,@blk=blk from #temp_who_lock where id=@index 
 if @spid=0 
 select '引起阻塞的是:'+cast(@blk 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(@blk AS VARCHAR(10)) +'阻塞,其当前进程执行的SQL语法如下' 
 dbcc inputbuffer(@spid) 
 dbcc inputbuffer(@blk) 
 set @index=@index+1 
 end 
 end 
 drop table #temp_who_lock 
 return 0 
end 
GO

在查询分析器中执行:

exec sp_who_lock

直到最后的结果为：**

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