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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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дORACLE SQL

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        select * from table order by nlssort(name,'NLS_SORT=schinese_pinyin_M');
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select stu.sno, stu.sname
from student stu
where (select count(*) from s ......

ORACLE PL/SQL°ü(package)ѧϰ±Ê¼Ç

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1¡¢°ü¹æ·¶£¨Package Specification£©
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CREATE [OR REPLACE] PACKAGE package_name {IS | AS}
Procedure_name | function_name | variable_declaration | type_def ......

ORACLE PL/SQL ¶ÔÏó(object)ѧϰ±Ê¼Ç(Èý)

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INSTANTIABLE¹Ø¼ü×Ö±íʾÎÒÃÇ¿ÉÒÔ´Ó¸ÃÀàÐÍÖÐʵÀý»¯»òÕß´´½¨¶ÔÏ ......

OracleÓÃÓαê·Ö½âºÅÂë´ÎÊý

drop table tb_wjf_xh_dg100_50_tmp4 purge; 
create table tb_wjf_xh_dg100_50_tmp4
 (
 servnumber varchar(11)
 )
;
  
declare
      vv_cusor_servnumber  varchar2(32);
      vv_cusor_lost_cnt  & ......

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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