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