ÈçºÎÕÒµ½sql serverÊý¾Ý¿âÖеÄËÀËø?
¼ì²âËÀËø
Èç¹û·¢ÉúËÀËøÁË£¬ÎÒÃÇÔõôȥ¼ì²â¾ßÌå·¢ÉúËÀËøµÄÊÇÄÄÌõSQLÓï¾ä»ò´æ´¢¹ý³Ì£¿
ÕâʱÎÒÃÇ¿ÉÒÔʹÓÃÒÔÏ´洢¹ý³ÌÀ´¼ì²â£¬¾Í¿ÉÒÔ²é³öÒýÆðËÀËøµÄ½ø³ÌºÍSQLÓï¾ä¡£SQL Server×Ô´øµÄϵͳ´æ´¢¹ý³Ìsp_whoºÍsp_lockÒ²¿ÉÒÔÓÃÀ´²éÕÒ×èÈûºÍËÀËø, µ«Ã»ÓÐÕâÀï½éÉܵķ½·¨ºÃÓá£
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
-- ÕÒµ½ÁÙʱ±íµÄ¼Ç¼Êý
select @intCountProperties = Count(*),@intCounter = 1
from #tmp_lock_who
IF @@ERROR<>0 RETURN @@ERROR
if @intCountProperties=0
select 'ÏÖÔÚûÓÐ×èÈûºÍËÀËøÐÅÏ¢' as message
-- Ñ»·¿ªÊ¼
while @intCounter <= @intCountProperties
begin
-- È¡µÚÒ»Ìõ¼Ç¼
select&nbs
Ïà¹ØÎĵµ£º
ÎÒÃÇÒª×öµ½²»µ«»áдSQL£¬»¹Òª×öµ½Ð´³öÐÔÄÜÓÅÁ¼µÄSQLÓï¾ä¡£
£¨1£©Ñ¡Ôñ×îÓÐЧÂʵıíÃû˳Ðò(Ö»ÔÚ»ùÓÚ¹æÔòµÄÓÅ»¯Æ÷ÖÐÓÐЧ)£º
OracleµÄ½âÎöÆ÷°´ÕÕ´ÓÓÒµ½×óµÄ˳Ðò´¦Àífrom×Ó¾äÖеıíÃû£¬from×Ó¾äÖÐдÔÚ×îºóµÄ±í(»ù´¡±í driving
table)½«±»×îÏÈ´¦Àí£¬ÔÚfrom×Ó¾äÖаüº¬¶à¸ö±íµÄÇé¿öÏÂ,Äã±ØÐëÑ¡Ôñ¼Ç¼ÌõÊý×îÉٵıí×÷Ϊ»ù´¡±í¡£È ......
ÊìÁ·Ê¹ÓÃSQL ServerÖеĸ÷ÖÖÓ÷¨»á¸ø²éѯ´øÀ´ºÜ¶à·½±ã¡£½ñÌì¾Í½éÉÜÒ»ÏÂEXCEPTºÍINTERSECT¡£×¢Òâ´ËÓï·¨½öÔÚSQL Server 2005¼°ÒÔÉÏ°æ±¾Ö§³Ö¡£
EXCEPTÊÇÖ¸ÔÚµÚÒ»¸ö¼¯ºÏÖдæÔÚ£¬µ«ÊDz»´æÔÚÓÚµÚ¶þ¸ö¼¯ºÏÖеÄÊý¾Ý¡£
INTERSECTÊÇÖ¸ÔÚÁ½¸ö¼¯ºÏÖж¼´æÔÚµÄÊý¾Ý¡£
²âÊÔÈçÏ£º
create table t1(id int,mark char(2))
go
create ta ......
ÏÂÁÐÓï¾ä²¿·ÖÊÇMssqlÓï¾ä£¬²»¿ÉÒÔÔÚaccessÖÐʹÓá£
¡¡¡¡SQL·ÖÀࣺ
¡¡¡¡DDL—Êý¾Ý¶¨ÒåÓïÑÔ
(CREATE£¬ALTER£¬DROP£¬DECLARE)
¡¡¡¡DML—Êý¾Ý²Ù×ÝÓïÑÔ
(SELECT£¬DELETE£¬UPDATE£¬INSERT)
¡¡¡¡DCL—Êý¾Ý¿ØÖÆÓïÑÔ
(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
¡¡¡¡Ê×ÏÈ,¼òÒª½éÉÜ»ù´¡Óï¾ä£º
¡¡¡¡1¡¢ËµÃ÷£º´´½¨Êý ......
1.create database dataname
ÕâÊÇ´´½¨Êý¾Ý¿â×î¼òµ¥µÄ·½·¨£®Êý¾Ý¿âµÄ¸÷¸öÊôÐÔ¶¼ÊÇĬÈÏ£®ÈçÊý¾Ý¿âÎļþÓëÈÕÖ¾Îļþ´æ´¢Ä¿Â¼£®Êý¾Ý¿â´óСµÈ£®
ÏÂÃæ½éÉÜϳ£Óþö¶¨Êý¾Ý¿âÊôÐÔµÄ×Ӿ䣮
on:¼òµ¥Àí½âΪ¶¨Òå´æ´¢Êý¾Ý¿âÎļþµÄλÖ㬿´ÏÂÃæ´úÂ룮
filename:Êý¾Ý¿âµÄÂß¼±ðÃû
size:Êý¾Ý¿â³õʼ´óС
maxsize:Êý¾Ý¿â³õ´óÈÝÁ¿
fil ......
sql Óï¾ä°´¹¦ÄÜ·ÖΪ3ÀࣺÊý¾Ý¶¨ÒåÓï¾ä£¬Êý¾Ý²Ù×÷Óï¾ä£¬Êý¾Ý¿ØÖÆÓï¾ä
Ò»£ºÊý¾Ý¶¨ÒåÓï¾ä£º
CREATE TABLE --´´½¨Ò»¸öÊý¾Ý¿â±í
DROP TABLE --´ÓÊý¾Ý¿âÖÐɾ³ý±í
ALTER TABLE --ÐÞ¸ÄÊý¾Ý¿â±í½á¹¹
&n ......