SQL Server进程阻塞的检查和解决办法

先声明，这篇文章是转自（文心残）的Blog。

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 '引起数据库阻塞的是: '+ 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

--结束SQL阻塞的进程％％％％％％％％％％％％％％％％％％％％％％

create procedure sp_Kill_lockProcess

as

begin

SET NOCOUNT ON

declare @spid int,@bl int,

@intTransactionCountOnEntry int,

@intRowcount int,

@intCountProperties int,

@intCounter int,

@sSql nvarchar (200)

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

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

begin

set @sSql='kill ' + CAST(@bl AS VARCHAR(10))

exec sp_executesql @sSql

end

end

-- 循环指针下移

set @intCounter = @intCounter + 1

end

drop table #tmp_lock_who

SET NOCOUNT OFF

return 0

end

GO

查看锁信息

如何查看系统中所有锁的详细信息？在企业管理管理器中，我们可以看到一些进程和锁的信息，这里介绍另外一种方法。

--查看锁信息
create table #t(req_spid int,obj_name sysname)

declare @s nvarchar(4000)
,@rid int,@dbname sysname,@id int,@objname sysname

declare tb cursor for
select distinct req_spid,dbname=db_name(rsc_dbid),rsc_objid
from master..syslockinfo where rsc_type in(4,5)
open tb
fetch next from tb into @rid,@dbname,@id
while @@fetch_status=0
begin
set @s='select @objname=name from ['+@dbname+']..sysobjects where id=@id'
exec sp_executesql @s,N'@objname sysname out,@id int',@objname out,@id
insert into #t values(@rid,@objname)
fetch next from tb into @rid,@dbname,@id
end
close tb
deallocate tb

select 进程id=a.req_spid
,数据库=db_name(rsc_dbid)
,类型=case rsc_type when 1 then 'NULL 资源（未使用）'
when 2 then '数据库'
when 3 then '文件'
when 4 then '索引'
when 5 then '表'
when 6 then '页'
when 7 then '键'
when 8 then '扩展盘区'
when 9 then 'RID（行 ID)'
when 10 then '应用程序'
end
,对象id=rsc_objid
,对象名=b.obj_name
,rsc_indid
from master..syslockinfo a left join #t b on a.req_spid=b.req_spid

go
drop table #t