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