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sqlserver2005Ô¶³ÌÁ¬½Ó mysql
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sp_addlinkedserver     'ntest-linkÃû',   'MySQL',  'MSDASQL--Ö§³ÖµÄÁ´½Ó·½Ê½',  'mytest-dsnÃû'
GO
sp_addlinkedsrvlogin   'ntest-linkÃû','false', 'sa-sqlserverÓû§','mythzz-sqlserverÃÜÂë'
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select  * from  ntest..pdns.tt
µ«ÊÇÎÒʽÁË Ìáʾ¾Ü¾øÓû§ÐèÒªÃÜÂë
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µÈ¿ÕÁËÔÚ¸ãÏÂ
µÚ¶þÖÖ·½·¨ÊÇÖ±½ÓÓÃ
OPENROWSETÓëOPENQUERY£¨¾ßÌå¿ÉÒÔ²ésql°ïÖúÎĵµ£©
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SP_CONFIGURE 'show advanced options',1
GO
RECONFIGURE
GO
-- Ϊ¿ªÆôΪ¹Ø±Õ
SP_CONFIGURE 'Ad Hoc Distributed Queries',1
GO
RECONFIGURE
GO
SP_CONFIGURE 'show advanced options',0
GO
RECONFIGURE
SELECT *
from OPENROWSET('MSDASQL','mytest';'root';'mythzz',
   'SELECT * from pdns.tt')
 


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Oracle´æ´¢¹ý³Ìת³ÉSqlserver´æ´¢¹ý³Ì
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Oracle£º TO_NUMBER(TO_CHAR(SYSDATE, 'YYYYMMDD'))
SqlServer£ºCAST(CONVERT(CHAR(8),GETDATE(), 112) AS INT)
    ×¢£ºÆäÖБYYYYMMDD’¸ñʽ   ¶ÔÓ¦112
2.ROWIDת»»
Oracle£º ROWID
SqlServer: PRIMARY KEY(±íÖ÷¼ü)
3.ROWNUM ......

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eg:
select * from Exception_Log where DATEDIFF(day,OPER_DATE,getdate())<30 ;
/*
oper_date Ϊ±íÖвéѯ³öÀ´µÄʱ¼ä
getdate()ΪSQLServerÀïÃæ»ñµÃϵͳʱ¼äµÄº¯Êý
º¬Ò壺µ±Ç°Ê±¼ä-²éѯ³öÀ´µÄʱ¼äСÓÚ30Ìì
DateDiff¾ßÌåÓ÷¨£º
*/
DateDiff º¯Êý
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DateDiff(interval, date1, da ......

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function db()
{
//»î¶¯±àºÅ
var activeid = Request.Form("activeid");
//Óû§Ãû
var username = Request.Form("username");
//ÊÖ»úºÅÂë
var mobile = Request.Form("mobile");
var conn= Server.CreateObject("ADODB.connection");
var rs= Serve ......

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¼Ç¼һÏÂÒÔ±¸Ï´οìËÙÕÒµ½¡£¡£¡£
       Íùtb_wf_privgrant±íÖвåÈëÒ»Ìõ¼Ç¼£¬workflow_id×Ö¶ÎÖµ´Ótb_wf_workflow ±íÖлñÈ¡workflow_name='֪ʶÉóºË'µÄËùÓмǼÖÐworkflow_id×î´óÖµ¡£
--oracle
declare   a NUMBER(10);
   begin
   select  max(wo ......

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       String sqlcon = "***";//ÕâÀïÊÇÒ»¸ö×Ö·û´®£¬¾ßÌå¸úÊý¾Ý¿âµÄÑéÖ¤·½Ê½Óйء£
//sql server Éí·ÝÑéÖ¤ Á¬½Ó×Ö·û´®
private string ConnstrSqlServer = "server=·þÎñÆ÷Ãû³ ......
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