Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Shrink SQL Server 2008 Database + Log File Script

Use DatabaseName
--DB shrink
--»ñÈ¡database ¿ÕÓà¿Õ¼ä£¬¡¡¾ö¶¨ÊÇ·ñ×÷shrinkDB
exec [DBNAME].dbo.sp_spaceused
DBCC ShrinkDB(DBNAME)
--Log file shrink
Use DatabaseName
GO
Alter Database DatabaseName Set Recovery Simple
GO
Alter Database DatabaseName Set Recovery Full
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO
DBCC SHRINKFILE ('LogFileName', 1)
GO


Ïà¹ØÎĵµ£º

SQL/PLUS



4£®Êý¾ÝÀàÐÍת»»º¯Êý
   ¡ñÒþʽת»»
     ¸³ÖµÊ±¿É½øÐеÄÒþʽת»»ÓÐ
       VARCHAR2»òCHAR —¡µNUMBER
       VARCHAR2»òCHAR —¡µDATE
       NUMBER —¡µVARCHAR ......

SQL´¥·¢Æ÷ ʵÀý½Ìѧ


        ... 
      )
     Óõ½µÄ¹¦ÄÜÓÐ: 
        1.Èç¹ûÎÒ¸ü¸ÄÁËѧÉúµÄѧºÅ,ÎÒÏ£ÍûËûµÄ½èÊé¼Ç¼ÈÔÈ»ÓëÕâ¸öѧÉúÏà¹Ø(Ò²¾ÍÊÇͬʱ¸ü¸Ä½èÊé¼Ç¼±íµÄѧºÅ); 
        2.Èç¹û¸ÃѧÉúÒѾ­ ......

ORACLE SQLÓï¾äÓÅ»¯


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¡£Èç¹ûÓÐ3¸öÒÔÉϵıíÁ¬½Ó²éѯ, ÄǾÍÐèҪѡÔñ½»²æ±í(intersection ......

sql×¢Èë


ÅжÏÊý¾Ý¿âÀàÐÍ
(select count(*) fromsysobjects)>0  //sqlÊý¾Ý¿â
(select count(*) from msysobjects)>0 //accessÊý¾Ý¿â
µÃµ½SqlÓû§Ãû
 user>0
Conversion failed when converting the nvarchar value 'dbo' to data type int.
Öع¹SQLÓï¾ä
ÕûÊýÐÍ
(A) ID=49 ID=49 And [ ²éѯÌõ¼þ] £¬¼´Ê ......

SQL SERVERÖÐһЩÌرðµØ·½µÄÌرð½â·¨

--1.¹ØÓÚwhereɸѡÆ÷ÖгöÏÖÖ¸¶¨ÐÇÆÚ¼¸µÄÇó½â
SQL code
--»·¾³
create table test_1
(
id int,
value varchar(10),
t_time datetime
)
insert test_1
select 1,'a','2009-04-19' union
select 2,'b','2009-04-20' union
select 3,'c','2009-04-21' union
select 4,'d','2009-04-22' union
s ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ