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

ÇåÀíSQL Server 2008Êý¾Ý¿âÈÕÖ¾

ÇåÀíSQL Server 2008Êý¾Ý¿âÈÕÖ¾
ÊÕ²Ø



µÚÒ»²½, ÔÚÊÕËõÇ°ÏȲ鿴ÈÕÖ¾µÄ´óС:
SELECT

*
from
sysfiles
WHERE
name
LIKE
'
%
LOG
%'
GO
 
µÚ¶þ²½, °ÑÊý¾Ý¿âµÄ»Ö¸´Ä£Ê½Éè³É”¼òµ¥”:
ALTER

DATABASE
¿âÃû
SET
RECOVERY SIMPLE
GO
 
µÚÈý²½, ÔËÐÐcheckpointÖ¸Áî, °Ñdirty pageд½øÊý¾Ý¿â:
CHECKPOINT
GO
 
µÚËIJ½, ½Ø¶ÏÈÕÖ¾: 
BACKUP

LOG
¿âÃû
WITH
NO_LOG
GO
 
µÚÎå²½, ¼Ç¼һÏÂÈÕÖ¾ÃûΪÏÂÒ»²½×ö×¼±¸:
 
SELECT
Name
from
sysfiles
WHERE
name
LIKE
'
%
LOG'
GO
 
 
µÚÁù²½, ÊÕËõÈÕÖ¾Îļþ, °Ñ²»ÓõĿռäÊͷŸø²Ù×÷ϵͳ:
DBCC
SHRINKFILE (ÎļþÃû, ËùÐè´óС)
GO
 
µÚÆß²½, ÑéÖ¤Ò»ÏÂÈÕÖ¾´óСÊÇ·ñ´ïµ½ËùÐè´óСÁË:
SELECT

*
from
sysfiles
WHERE
name
LIKE
'
%
LOG
%
'
GO
 
 ºóÐø²½Öè:
 1)²é¿´ÄãµÄÖ÷ÒªÊý¾Ý¿â, ¿´¿´ÈÕÖ¾Ôö³¤ÊÇ·ñʧ¿Ø;
 2)²é¿´ÉÏÃæµÄ´úÂë, ²¢½øÐбØÒªÐ޸ĺͲâÊÔÒÔÊÊÓ¦ÄãµÄÊý¾Ý¿âÒªÇó;
 3)¶¨ÆÚÊÕËõÊý¾Ý¿â ----(×¢: É÷ÓÃ!! ²»½¨ÒéÓÃÔÚproduction»·¾³Àï.)
 4)¼ÌÐø¼à¿ØÊý¾Ý¿â´óСºÍ·þÎñÆ÷ÉϵĿÉÓÿռä´óС.


Ïà¹ØÎĵµ£º

Oracle SQL DeveloperÓëPL/SQL Developer±È½Ï¡¾×ª¡¿

¸½:Oracle SQL Developer — À©Õ¹½»Á÷ÖÐÐÄ
http://www.oracle.com/technology/global/cn/products/database/sql_developer/files/extensions.htm
      ֮ǰ×÷Ϊһ¸öOracle Employee£¬È´×ÜÊÇÔÚʹÓÃPL/SQL Developer£¨¶øÇÒÊÇÆƽâ°æ£©£¬ÕâʵÔÚÓÐЩ˵²»¹ýÈ¥£¬µ«ÊÇÈçºÎÕÒµ½Ò»¸öºÏÐijÃÊÖµÄÄܹ»Ô ......

Sql Serverµ¼³öÎı¾Îļþ

ÏÈ¿ªÆô·þÎñÆ÷ÅäÖÃÑ¡Ï
EXEC sp_configure 'show advanced options', 1
RECONFIGURE
EXEC sp_configure 'xp_cmdshell', 1
RECONFIGURE
/** µ¼³öÎı¾Îļþ 
EXEC master..xp_cmdshell 'bcp dbname..tablename out c:\DT.txt -c -S servername -U sa -P password' 
»ò 
EXEC master..xp_cmdshell ' ......

»ñµÃÊý¾Ý¿âÃû³Æ///////²éѯÊý¾Ý¿âÀïËùÓбíµÄsqlÓï¾ä£¡

select   name   as   ¿âÃû   from   master..sysdatabases   where   dbid>=7 »ñµÃÊý¾Ý¿âÃû³Æ
select * from sysobjects where xtype='u' or xtype='v' ²éѯÊý¾Ý¿âÀïËùÓбíµÄsqlÓï¾ä£¡
select name from sysobjects where type='u' ²éѯһ¸ö¿ ......

sql²éѯÓï¾äÖÐ inºÍ existsµÄÇø±ðÓëÐÔÄܱȽÏ

¶ÔInºÍexistsµÄÐÔÄܽøÐбȽϣ¬Ê×ÏÈÒªÖªµÀËüÃÇÁ½ÕßµÄÇø±ð¡£
in: È·¶¨¸ø¶¨µÄÖµÊÇ·ñÓë×Ó²éѯÖеÄÖµ»òÁбíÖеÄÖµÏàÆ¥Åä¡£
exists: Ö¸¶¨Ò»¸ö×Ó²éѯ£¬¼ì²âÐÐÊÇ·ñ´æÔÚ¡£
¿É·ÖÎöËüÃǵIJéѯÓï¾äÀ´µÃ³öÕæʵµÄ²î±ð:
in
±ÈÈçSelect * from t1 where x in ( select y from t2 )
Ö´ÐеĹý³ÌÏ൱ÓÚ:
select *
  from t1, ( ......

Sql Server ¶ÔxmlÀàÐ͵IJÙ×÷

 declare @XML XML
SET @XML='<root>
 <OLDVALUE>
  <H_Action id="1130">030</H_Action>
  <D_Action>030</D_Action>
  <OrderCompany>00220</OrderCompany>
  <OrderNumber>10004035</OrderNumber> ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ