查询Sqlserver数据库死锁的一个存储过程分享

数据库  /  管理员 发布于 7年前   198

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：**