SQL检查死锁情况

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



exec sp_who_lock