处理sql锁死问题

Posted 2020-10-12

--SQL Server死锁的查询方法:  

exec master.dbo.p_lockinfo 0,0; ---显示死锁的进程,不显示正常的进程 

 exec master.dbo.p_lockinfo 1,0; ---杀死死锁的进程,不显示正常的进程 

--master数据库中创建如下存储过程

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