存储过程引发的问题,请大家帮忙看看

Question

事务（进程 ID  194）与另一个进程已被死锁在  lock 资源上，且该事务已被选作死锁牺牲品。请重新运行该事务。--> 测试数据: [table1]
if object_id('[table1]') is not null drop table [table1]
go
create table [table1] (id int,weburl varchar(20))
insert into [table1]
select 1,'http://www.baidu.com' union all
select 2,'http://www.126.com' union all
select 3,'http://www.163.com' union all
select 6,'http://www.yahoo.com'
--> 测试数据: [table2]
if object_id('[table2]') is not null drop table [table2]
go
create table [table2] (id int,webip varchar(11),dt datetime,urlid  varchar(100),bz varchar(1))
insert into [table2]
select 11,'192.168.1.1','2010-12-5','1,','H' union all
select 12,'192.168.1.2','2010-12-5','1,3,','M' union all
select 13,'192.168.1.6','2010-12-5','1,6,3,2,','H'
if object_id('pp') is not null drop proc pp
go
create proc pp
@ip varchar(50),
@dt datetime,
@bz varchar(100),
@return varchar(100) output
as
declare @s varchar(10)if exists(select 1 from table2 where webip=@ip and dt=@dt ) 
-- 这里增加第3种情况，不过好像和第一种情况有重复的操作
    if exists(select 1 from table1 a,table2 b where webip=@ip and dt=@dt and charindex(','+ltrim(a.id),','+b.urlid)=0)
        begin
        set @s=(select top 1 ltrim(a.id) from table1 a,table2 b where webip=@ip and dt=@dt and charindex(','+ltrim(a.id),','+b.urlid)=0 order by newid())        update table2 
        set urlid=urlid+@s+','
        where webip=@ip and dt=@dt        select @return=weburl from table1 where id=cast(@s as int)         end
    else
        begin
            select @return='0'
        end
else
    begin
    set @s=(select top 1 ltrim( id) from table1 order by newid())
    insert table2 select 0, @ip,@dt,@s+',',@bz            -- id用0测试，实际自增列，不用插入此列值    select @return=weburl from table1 where id=cast(@s as int)     end
go -- 1
declare @r varchar(100)exec pp '192.168.1.1','2010-12-5','H',@r outputselect @r
select * from [table2]/*
----------------------------------------------------------------------------------------------------
http://www.163.com(1 行受影响)id          webip       dt                      urlid                                                                                                bz
----------- ----------- ----------------------- ---------------------------------------------------------------------------------------------------- ----
11          192.168.1.1 2010-12-05 00:00:00.000 1,3,                                                                                                 H
12          192.168.1.2 2010-12-05 00:00:00.000 1,3,                                                                                                 M
13          192.168.1.6 2010-12-05 00:00:00.000 1,6,3,2,                                                                                             H(3 行受影响)
*/-- 2
declare @r varchar(100)exec pp '192.168.1.5','2010-12-5','M',@r outputselect @r
select * from [table2]/*
----------------------------------------------------------------------------------------------------
http://www.163.com(1 行受影响)id          webip       dt                      urlid                                                                                                bz
----------- ----------- ----------------------- ---------------------------------------------------------------------------------------------------- ----
11          192.168.1.1 2010-12-05 00:00:00.000 1,                                                                                                   H
12          192.168.1.2 2010-12-05 00:00:00.000 1,3,                                                                                                 M
13          192.168.1.6 2010-12-05 00:00:00.000 1,6,3,2,                                                                                             H
0           192.168.1.5 2010-12-05 00:00:00.000 3,                                                                                                   M(4 行受影响)
*/-- 3
declare @r varchar(100)exec pp '192.168.1.6','2010-12-5','H',@r outputselect @r
select * from [table2]/*
----------------------------------------------------------------------------------------------------
0(1 行受影响)id          webip       dt                      urlid                                                                                                bz
----------- ----------- ----------------------- ---------------------------------------------------------------------------------------------------- ----
11          192.168.1.1 2010-12-05 00:00:00.000 1,                                                                                                   H
12          192.168.1.2 2010-12-05 00:00:00.000 1,3,                                                                                                 M
13          192.168.1.6 2010-12-05 00:00:00.000 1,6,3,2,                                                                                             H(3 行受影响)*/

Answer 1

数据量大的时候,就报事务（进程 ID 194）与另一个进程已被死锁在 lock 资源上，且该事务已被选作死锁牺牲品。请重新运行该事务。

Answer 2

死锁了呗.
/*--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--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,s2select @count=@@rowcount,@i=1if @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
endif @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