SQLSERVER查询数据库死锁的存储过程

USE [IdentityDemo]
GO
/****** Object:  StoredProcedure [dbo].[sp_who_lock]    Script Date: 2019/1/17 10:47:53 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE procedure [dbo].[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           
 
 

使用方法：

exec sp_who_lock  //执行死锁查询

kill 54  //杀死阻塞的进程

（编辑：李大同）

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