檢視資料庫死鎖的儲存過程sp_who_lock
create procedure sp_who_lock
asbegin
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
-- 找到臨時表的記錄數
select @intcountproperties = count(*),@intcounter = 1
from #tmp_lock_who
if @@error<>0 return @@error
if @intcountproperties=0
select '現在沒有阻塞和死鎖資訊' as message
-- 迴圈開始
while @intcounter <= @intcountproperties
begin
-- 取第一條記錄
select @spid = spid,@bl = bl
from #tmp_lock_who where id = @intcounter
begin
if @spid =0
select '引起資料庫死鎖的是: '+ cast(@bl as varchar(10)) + '程序號,其執行的sql語法如下'
else
select '程序號spid：'+ cast(@spid as varchar(10))+ '被' + '程序號spid：'+ cast(@bl as varchar(10)) +'阻塞,其當前程序執行的sql語法如下'
dbcc inputbuffer (@bl )
end
-- 迴圈指標下移
set @intcounter = @intcounter + 1
enddrop table #tmp_lock_who
return 0
end--使用於sql server 2000
create procedure sp_lock --- 1996/04/08 00:00
@spid1 int = null, /* server process id to check for locks */
@spid2 int = null /* other process id to check for locks */
asset nocount on
/*** show the locks for both parameters.
*/if @spid1 is not null
begin
select convert (smallint, req_spid) as spid,
rsc_dbid as dbid,
rsc_objid as objid,
rsc_indid as indid,
substring (v.name, 1, 4) as type,
substring (rsc_text, 1, 16) as resource,
substring (u.name, 1, 8) as mode,
substring (x.name, 1, 5) as status
from master.dbo.syslockinfo,
master.dbo.spt_values v,
master.dbo.spt_values x,
master.dbo.spt_values u
where master.dbo.syslockinfo.rsc_type = v.number
and v.type = 'lr'
and master.dbo.syslockinfo.req_status = x.number
and x.type = 'ls'
and master.dbo.syslockinfo.req_mode + 1 = u.number
and u.type = 'l'
and req_spid in (@spid1, @spid2)
end/*
** no parameters, so show all the locks.
*/else
begin
select convert (smallint, req_spid) as spid,
rsc_dbid as dbid,
rsc_objid as objid,
rsc_indid as indid,
substring (v.name, 1, 4) as type,
substring (rsc_text, 1, 16) as resource,
substring (u.name, 1, 8) as mode,
substring (x.name, 1, 5) as status
from master.dbo.syslockinfo,
master.dbo.spt_values v,
master.dbo.spt_values x,
master.dbo.spt_values u
where master.dbo.syslockinfo.rsc_type = v.number
and v.type = 'lr'
and master.dbo.syslockinfo.req_status = x.number
and x.type = 'ls'
and master.dbo.syslockinfo.req_mode + 1 = u.number
and u.type = 'l'
order by spid
endreturn (0) -- sp_lock
go微軟已經寫好的sp_who，為啥不用？你能保證你寫的儲存過程的效能比微軟自己寫的效能要好？
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