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'**µ÷    ÓãºfBackupDatabase_a "±¸·ÝÎļþÃû","Êý¾Ý¿âÃû"
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'**          sBackUpfileName  »Ö¸´ºóµÄÊý¾Ý¿â´æ·ÅĿ¼
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'**          sIsAddBackup     ÊÇ·ñ×·¼Óµ½±¸·ÝÎļþÖÐ
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Public Function fBackupDatabase_a(ByVal sBackUpfileName$ _
                                , ByVal sDataBaseName$ _
                                , Optional ByVal sIsAddBackup As Boolean = False _
                                ) As String
                                
    Dim iDb As ADO


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backup service master key to file='c:\smk.bak'
encryption by password='P@ssw0rd'
 
restore service master key from file='c:\smk.bak'
decryption by password='P@ssw0rd'
 
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CREATE OR REPLACE PACKAGE BODY PACK_RISK_FUNCTION AS
--- 1 ½«·ûºÅÌæ»»³É#ºÅ »òÐí¿ÉÒÔÓÃÕýÔò±í´ïʽ£¬µ«ÊÇÏÓÂé·³»¹ÊÇÖ±½ÓÓÃÌæ»»
FUNCTION CHANGE_OPERATOR(FORMULA VARCHAR2)
RETURN VARCHAR2
AS
V_FORMULA VARCHAR2(100);
BEGIN
V_FORMULA := REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(FORMULA,'(',''), ......

SQLʹÓÃÁ´½Ó·þÎñÆ÷Ö´ÐÐÔ¶³ÌÊý¾Ý¿âÉϵĴ洢¹ý³Ì

 
--´´½¨Á´½Ó·þÎñÆ÷
exec sp_addlinkedserver 'server_tmp','','SQLOLEDB','Ô¶³Ì·þÎñÆ÷Ãû»òipµØÖ·'
exec sp_addlinkedsrvlogin 'server_tmp','false',null,'Óû§Ãû','ÃÜÂë'
exec sp_serveroption 'server_lnk','rpc out','true' --Õâ¸öÔÊÐíµ÷ÓÃÁ´½Ó·þÎñÆ÷ÉϵĴ洢¹ý³Ì
go
 
--µ÷Óãº
exec server_tmp.Êý¾ ......

SQL»ù´¡Ìâ

Student(S#,Sname,Sage,Ssex) ѧÉú±í
Course(C#,Cname,T#) ¿Î³Ì±í
SC(S#,C#,score) ³É¼¨±í
Teacher(T#,Tname) ½Ìʦ±í
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1¡¢²éѯ“001”¿Î³Ì±È“002”¿Î³Ì³É¼¨¸ßµÄËùÓÐѧÉúµÄѧºÅ£»
select a.S# from (select s#,score from SC where C#='001') a,(select s#,score
from SC wher ......

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SQL Server²éѯһÕűíµÄËùÓÐ×ֶΣº
http://hi.baidu.com/samxx8/blog/item/7048f8de1725835894ee37b4.html
SELECT c.name,o.name from syscolumns AS c
INNER JOIN sysobjects AS o
ON c.id = o.id where o.name='SPF_Users' ......
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