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---¸½¼ÓÊý¾Ý¿â
sp_attach_db   'Êý¾Ý¿âÃû','Êý¾Ý¿âȫ·¾¶','Êý¾Ý¿âÈÕ־ȫ·¾¶'
---²é¿´Êý¾Ý¿âÂß¼­ÎļþÃû
RESTORE FILELISTONLY from disk = '±¸·ÝÎļþ'
---»¹Ô­Êý¾Ý¿â
restore database hzrb from disk = '±¸·ÝÎļþ'
with move 'Ö÷Âß¼­Ãû'     to '´æ·Åmdf·¾¶'   
,move 'ÈÕÖ¾Âß¼­Ãû' to '´æ·Åldf·¾¶'
--ÐÞ¸ÄÊý¾Ý¿âµÄÂß¼­ÎļþÃû£¨Êý¾Ý£©
ALTER DATABASE NEW
MODIFY FILE(NAME='Old_Data',NEWNAME='New_Data')
GO
--ÐÞ¸ÄÊý¾Ý¿âµÄÂß¼­ÎļþÃû£¨ÈÕÖ¾£©
ALTER DATABASE NEW
MODIFY FILE(NAME='Old_Log',NEWNAME='New_Log')
GO


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ORACLE PL/SQL ¶ÔÏó(object)ѧϰ±Ê¼Ç(¶þ)

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CREATE OR REPLACE TYPE Obj1 AS OBJECT (
f1 NUMBER,
f2 VARCHAR2(10),
f3 DATE
);
/

CREATE OR REPLACE TYPE Obj2 AS OBJECT (
f1 DATE,
f2 CHAR(1)
);
/

CREATE OR REPLACE TYPE Obj3 AS OBJECT (
a Obj1,
b Obj2
);
/
  
 
OBJ3ÒÀÀµÓÚOBJ ......

ORACLE PL/SQL ¶ÔÏó(object)ѧϰ±Ê¼Ç(Èý)

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¶ÔÏóÀàÐÍʵÏÖÔÊÐíÎÒÃÇ´´½¨Ò»¸ö»ùÀàÐÍ£¬»ò½Ð¸¸ÀàÐÍ£¬ÕâÖÖÀàÐ͵ÄÊôÐÔ»ò·½·¨¿ÉÒÔ±»ÁíÒ»¸ö¶ÔÏóÀàÐͼ̳С£È»ºó¿ÉÒÔ´´½¨Ò»¸ö×ÓÀàÐÍ£¬»ò½Ðº¢×ÓÀàÐÍ£¬Ö±½ÓʹÓü̳йýÀ´µÄÊôÐÔ»ò·½·¨£¬»òÕßÓÃ×Ô¼ºµÄÊôÐԺͷ½·¨ÖØÐ´¸¸ÀàÐ͵ÄÊôÐÔ»ò·½·¨¡£
 
INSTANTIABLE¹Ø¼ü×Ö±íʾÎÒÃÇ¿ÉÒÔ´Ó¸ÃÀàÐÍÖÐʵÀý»¯»òÕß´´½¨¶ÔÏ ......

sql server ÄÚ´æ±í

--1¼ÓÄÚ´æ±í
EXEC sp_tableoption '±íÃû','pintable', 'true' 
--2Ð¶ÔØÄÚ´æ±í
EXEC sp_tableoption '±íÃû','pintable', 'false' 
--2²éѯÊÇ·ñÓÐÄÚ´æ±íפÁô
SELECT * from INFORMATION_SCHEMA.Tables 
WHERE TABLE_TYPE = 'BASE TABLE' 
          AND OBJECTPROP ......

SQLÓï¾äPART8

PairWise subquery:
e.g.:
select * from wf_docsort where (ndocsortid,nmoduleinfoid)  in (select ndocsortid, nmoduleinfoid from wf_docsort where instr(cname,'ÎÄ')>0)
the above sql is the same function as:
select * from wf_docsort where ndocsortid = (select ndocsortid from wf_docsort where ......

linq to sqlÉú³Énot inÓï¾äµÄС¼¼ÇÉ

ÒÔǰһֱ¾õµÃlinq to sqlÉú³ÉÀàËÆwhere id not in (1,3,5)»òwhere id not in (select id from ...)ÕâÑùµÄÌõ¼þ²»ÊǺܷ½±ã£¬Ã¿´ÎÎÒ¶¼ÊǰÑÌõ¼þIDÊÂÏÈÈ¡µ½Ò»¸öÊý×éÀȻºóÓà !Arr.Contains(c.Id)ÕâÑù´¦Àí£¬½ñÌìͻȻ·¢ÏÖÕâÑùºÃɵ£¬Æäʵ¿ÉÒÔÍêȫֱ½ÓÓÃlinqд³ÉÒ»¾ä£¬Ìù¸öʾÀýÔÚÕâÀÒԺ󱸲é
from a in TableA where !(fr ......
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