查询Sqlserver数据库死锁的一个存储过程

    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：