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create database link Á´½ÓÃû 
¡¡connect to Óû§Ãû identified by ÃÜÂë 
¡¡¡¡ using '(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = ÒªÁ¬½ÓµÄIP)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = Êý¾Ý¿âµÄSID) ))';
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create database link idtsxxzsp
¡¡connect to sxxzsp identified by sxxzsp
¡¡¡¡ using '(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 199.66.68.15)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = idt) ))';
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insert into designer_form1 select * from designer_form@idtsxxzsp  //°ÑÔ¶¶ËµÄµÄdesigner_from±íÊý¾ÝÈ«²¿²åÈëµ½ÏÖÁ¬½ÓµÄÊý¾Ý¿âÖеÄdesigner_form1±íÖÐ ¡£
insert into designer_form@idtsxxzsp select * from designer_form where id in (893,892,999) //Õâ¸öÊǰѱ¾µØÊý¾ÝÓÐÑ¡ÔñµÄ²åÈëµ½Ô¶¶ËÊý¾Ý¿âÖС££¨Ö§³Ö´ó¶ÔÏó£©
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ORACLE PL/SQL ¶ÔÏó(object)ѧϰ±Ê¼Ç(Èý)

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oracle 11g dbconsole ÎÞ·¨Æô¶¯

°²×°oracle 11gÒÔºó ÎÞ·¨Æô¶¯dbconsole ¡£Í¨¹ýÁ½ÌìµÄŬÁ¦ÖÕÓÚ½â¾öÁË
1 ·¢ÏÖÈÕÖ¾±¨ ¶Ë¿Ú5520ÒѾ­±»Õ¼Óã¬ÎÞ·¨Ê¹Ó㬴ò¿ª /%ORACLE_HOME%/oc4j/je22/OC4J_DBConsole_localhost_orcl/config/rmi.xml
·¢ÏÖ port="5520" ssl-port="5520" ¶Ë¿ÚºÅʹÓÃÏàͬ£¬ÓÚÊÇÐÞ¸Ä port="5521" ssl-port=" ......

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SELECT * from
(
SELECT A.*, ROWNUM RN
from (SELECT * from TABLE_NAME) A
WHERE ROWNUM <= 40
)
WHERE RN >= 21
ÆäÖÐ×îÄÚ²ãµÄ²éѯSELECT * from TABLE_NAME±íʾ²»½øÐз­Ò³µÄԭʼ²éѯÓï¾ä¡£ROWNUM <= 40ºÍRN ......

CentOS 5ϰ²×°Oracle 11g

Oracle¹«Ë¾Ðû³ÆÔÚLinuxϰ²×°Oracle9iÊý¾Ý¿âÖÁÉÙÒªÓÐ512MBµÄÄÚ´æºÍÖÁÉÙ1GB»òÕßÁ½±¶     
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log4j ¼Ç¼ÈÕÖ¾·ÅÔÚoracleÖÐ

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  package com.assi;
import org.apache.log4j.jdbc.JDBCAppender;
public class DB extends JDBCAppender {
     public DB(){
         this.setDriver("oracle.jdbc.driver.OracleDriver"); 
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