--第一篇
--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 intcreate 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>0IF @@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
enddrop 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
goif exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_killspid]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[p_killspid]
GOcreate 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 sysnamedeclare 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 tbselect 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_spidgo
drop table #t--第二篇
-- ----------------版本1： 邹建写的 ----------------------------------
sqlserver 解除死锁
if
exists
(
select
*
from
dbo.sysobjects
where
id
=
object_id
(N
'
[dbo].[p_lockinfo]
'
)
and
OBJECTPROPERTY
(id, N
'
IsProcedure
'
)
=
1
)
drop
procedure
[
dbo
]
.
[
p_lockinfo
]
GO
SET
QUOTED_IDENTIFIER
ON
GO
SET
ANSI_NULLS
ON
GO
/*
--处理死锁 查看当前进程,或死锁进程,并能自动杀掉死进程 因为是针对死的,所以如果有死锁进程,只能查看死锁进程 当然,你可以通过参数控制,不管有没有死锁,都只查看死锁进程 感谢: caiyunxia,jiangopen 两位提供的参考信息 --邹建 2004.4--
*/
/*
--调用示例 exec p_lockinfo --
*/
create
proc
p_lockinfo
@kill_lock_spid
bit
=
1
,
--
是否杀掉死锁的进程,1 杀掉, 0 仅显示
@show_spid_if_nolock
bit
=
1
--
如果没有死锁的进程,是否显示正常进程信息,1 显示,0 不显示
as
declare
@count
int
,
@s
nvarchar
(
1000
),
@i
int
select
id
=
identity
(
int
,
1
,
1
),标志, 进程ID
=
spid,线程ID
=
kpid,块进程ID
=
blocked,数据库ID
=
dbid, 数据库名
=
db_name
(dbid),用户ID
=
uid,用户名
=
loginame,累计CPU时间
=
cpu, 登陆时间
=
login_time,打开事务数
=
open_tran, 进程状态
=
status, 工作站名
=
hostname,应用程序名
=
program_name,工作站进程ID
=
hostprocess, 域名
=
nt_domain,网卡地址
=
net_address
into
#t
from
(
select
标志
=
'
死锁的进程
'
, spid,kpid,a.blocked,dbid,uid,loginame,cpu,login_time,open_tran, status,hostname,program_name,hostprocess,nt_domain,net_address, s1
=
a.spid,s2
=
0
from
master..sysprocesses a
join
(
select
blocked
from
master..sysprocesses
group
by
blocked )b
on
a.spid
=
b.blocked
where
a.blocked
=
0
union
all
select
'
|_牺牲品_>
'
, spid,kpid,blocked,dbid,uid,loginame,cpu,login_time,open_tran, status,hostname,program_name,hostprocess,nt_domain,net_address, s1
=
blocked,s2
=
1
from
master..sysprocesses a
where
blocked
<>
0
)a
order
by
s1,s2
select
@count
=
@@rowcount
,
@i
=
1
if
@count
=
0
and
@show_spid_if_nolock
=
1
begin
insert
#t
select
标志
=
'
正常的进程
'
, spid,kpid,blocked,dbid,
db_name
(dbid),uid,loginame,cpu,login_time, open_tran,status,hostname,program_name,hostprocess,nt_domain,net_address
from
master..sysprocesses
set
@count
=
@@rowcount
end
if
@count
>
0
begin
create
table
#t1(id
int
identity
(
1
,
1
),a
nvarchar
(
30
),b
Int
,EventInfo
nvarchar
(
255
))
if
@kill_lock_spid
=
1
begin
declare
@spid
varchar
(
10
),
@标志
varchar
(
10
)
while
@i
<=
@count
begin
select
@spid
=
进程ID,
@标志
=
标志
from
#t
where
id
=
@i
insert
#t1
exec
(
'
dbcc inputbuffer(
'
+
@spid
+
'
)
'
)
if
@标志
=
'
死锁的进程
'
exec
(
'
kill
'
+
@spid
)
set
@i
=
@i
+
1
end
end
else
while
@i
<=
@count
begin
select
@s
=
'
dbcc inputbuffer(
'
+
cast
(进程ID
as
varchar
)
+
'
)
'
from
#t
where
id
=
@i
insert
#t1
exec
(
@s
)
set
@i
=
@i
+
1
end
select
a.
*
,进程的SQL语句
=
b.EventInfo
from
#t a
join
#t1 b
on
a.id
=
b.id
end
GO
SET
QUOTED_IDENTIFIER
OFF
GO
SET
ANSI_NULLS
ON
GO
--
--------版本2： 我在邹建的基础上改写的(KILL 死锁时间超过15秒的死锁进程 ---------------
/*
exec p_lockinfo 0,1;
*/
alter
proc
p_lockinfo
@kill_lock_spid
bit
=
1
,
--
是否杀掉死锁的进程,1 杀掉, 0 仅显示
@show_spid_if_nolock
bit
=
1
--
如果没有死锁的进程,是否显示正常进程信息,1 显示,0 不显示
as
declare
@count
int
,
@s
nvarchar
(
1000
),
@i
int
select
id
=
identity
(
int
,
1
,
1
),标志, 进程ID
=
spid,线程ID
=
kpid,块进程ID
=
blocked,数据库ID
=
dbid, 数据库名
=
db_name
(dbid),用户ID
=
uid,用户名
=
loginame,累计CPU时间
=
cpu,等待时间
=
waittime, 登陆时间
=
login_time,打开事务数
=
open_tran, 进程状态
=
status, 工作站名
=
hostname,应用程序名
=
program_name,工作站进程ID
=
hostprocess, 域名
=
nt_domain,网卡地址
=
net_address
into
#t
from
(
select
标志
=
'
死锁的进程
'
, spid,kpid,a.blocked,dbid,uid,loginame,cpu,waittime,login_time,open_tran, status,hostname,program_name,hostprocess,nt_domain,net_address, s1
=
a.spid,s2
=
0
from
master..sysprocesses a
join
(
select
blocked
from
master..sysprocesses
group
by
blocked )b
on
a.spid
=
b.blocked
where
a.blocked
=
0
union
all
select
'
|_牺牲品_>
'
, spid,kpid,blocked,dbid,uid,loginame,cpu,waittime,login_time,open_tran, status,hostname,program_name,hostprocess,nt_domain,net_address, s1
=
blocked,s2
=
1
from
master..sysprocesses a
where
blocked
<>
0
)a
order
by
s1,s2
select
@count
=
@@rowcount
,
@i
=
1
if
@count
=
0
and
@show_spid_if_nolock
=
1
begin
insert
#t
select
标志
=
'
正常的进程
'
, spid,kpid,blocked,dbid,
db_name
(dbid),uid,loginame,cpu,waittime,login_time, open_tran,status,hostname,program_name,hostprocess,nt_domain,net_address
from
master..sysprocesses
set
@count
=
@@rowcount
end
if
@count
>
0
begin
create
table
#t1(id
int
identity
(
1
,
1
),a
nvarchar
(
30
),b
Int
,EventInfo
nvarchar
(
4000
))
if
@kill_lock_spid
=
1
begin
declare
@spid
varchar
(
10
),
@标志
varchar
(
10
),
@等待时间
int
while
@i
<=
@count
begin
select
@spid
=
进程ID,
@标志
=
标志,
@等待时间
=
等待时间
from
#t
where
id
=
@i
insert
#t1
exec
(
'
dbcc inputbuffer(
'
+
@spid
+
'
)
'
)
if
@标志
=
'
死锁的进程
'
and
@等待时间
>=
15000
exec
(
'
kill
'
+
@spid
)
set
@i
=
@i
+
1
end
end
else
while
@i
<=
@count
begin
select
@s
=
'
dbcc inputbuffer(
'
+
cast
(进程ID
as
varchar
)
+
'
)
'
from
#t
where
id
=
@i
insert
#t1
exec
(
@s
)
set
@i
=
@i
+
1
end
select
a.
*
,进程的SQL语句
=
b.EventInfo
from
#t a
join
#t1 b
on
a.id
=
b.id
end
GO
SET
QUOTED_IDENTIFIER
OFF
GO
SET
ANSI_NULLS
ON
GO
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