关于死锁的两条过程

exec master.dbo.sp_who_lock --查看当前死锁进程

exec master.dbo.p_killspid ytsafety--杀掉引起死锁的进程



sp_who_lock如下：

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO


create  procedure sp_who_lock
as
begin
declare @spid int,@bl int,
@intTransactionCountOnEntry  int,
        @intRowcount    int,
        @intCountProperties   int,
        @intCounter    int

create table #tmp_lock_who (
id int identity(1,1),
spid smallint,
bl smallint)

IF @@ERROR<>0 RETURN @@ERROR

insert into #tmp_lock_who(spid,bl) select  0 ,blocked
   from (select * from sysprocesses where  blocked>0 ) a
   where not exists(select * from (select * from sysprocesses where  blocked>0 ) b
   where a.blocked=spid)
   union select spid,blocked from sysprocesses where  blocked>0

IF @@ERROR<>0 RETURN @@ERROR
 
-- 找到临时表的记录数
select  @intCountProperties = Count(*),@intCounter = 1
from #tmp_lock_who

IF @@ERROR<>0 RETURN @@ERROR

if @intCountProperties=0
  select '现在没有阻塞和死锁信息' as message

-- 循环开始
while @intCounter <= @intCountProperties
begin
-- 取第一条记录
  select  @spid = spid,@bl = bl
  from #tmp_lock_who where Id = @intCounter
begin
  if @spid =0
            select '引起数据库死锁的是: '+ CAST(@bl 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(@bl AS VARCHAR(10)) +'阻塞,其当前进程执行的SQL语法如下'
DBCC INPUTBUFFER (@bl )
end

-- 循环指针下移
set @intCounter = @intCounter + 1
end

drop table #tmp_lock_who

return 0
end



GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO



p_killspid 如下：

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO



create  proc p_killspid
@dbname varchar(200)    --要关闭进程的数据库名
as 
    declare @sql  nvarchar(500) 
    declare @spid nvarchar(20)

    declare #tb cursor for
        select spid=cast(spid as varchar(20)) from master..sysprocesses where dbid=db_id(@dbname)
    open #tb
    fetch next from #tb into @spid
    while @@fetch_status=0
    begin 
        exec('kill '+@spid)
        fetch next from #tb into @spid
    end 
    close #tb
    deallocate #tb


GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO



ALTER   proc p_killspid
@dbname varchar(200)    --要关闭进程的数据库名
as 
    declare @sql  nvarchar(500) 
    declare @spid nvarchar(20)

    declare #tb cursor for
        select spid=cast(spid as varchar(20)) from master..sysprocesses where dbid=db_id(@dbname)
    open #tb
    fetch next from #tb into @spid
    while @@fetch_status=0
    begin 
        exec('kill '+@spid)
        fetch next from #tb into @spid
    end 
    close #tb
    deallocate #tb


GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO