时间:2021-07-01 10:21:17 帮助过:68人阅读
查询死锁进程语句
- select
- request_session_id spid,
- OBJECT_NAME(resource_associated_entity_id) tableName
- from
- sys.dm_tran_locks
- where
- resource_type='OBJECT'
杀死死锁进程语句
- kill spid
下面再给大家分享一段关于sqlserver检测死锁;杀死锁和进程;查看锁信息
- --检测死锁
- --如果发生死锁了,我们怎么去检测具体发生死锁的是哪条SQL语句或存储过程?
- --这时我们可以使用以下存储过程来检测,就可以查出引起死锁的进程和SQL语句。SQL Server自带的系统存储过程sp_who和sp_lock也可以用来查找阻塞和死锁, 但没有这里介绍的方法好用。
- use master
- 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
- --杀死锁和进程
- --如何去手动的杀死进程和锁?最简单的办法,重新启动服务。但是这里要介绍一个存储过程,通过显式的调用,可以杀死进程和锁。
- use master
- go
- if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_killspid]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
- drop procedure [dbo].[p_killspid]
- 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
- --用法
- exec p_killspid 'newdbpy'
- --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
以上所述是小编给大家介绍的SqlServer查询和Kill进程死锁的语句,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持!