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del /q \ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day3
copy \ÒµÎñÊý¾Ý±¸·Ý\gzdb\backup\day2\*.*  \ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day3
del /q \ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day2
copy \ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day1\*.*  \ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day2
del /q \ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day1                    
copy \ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day0\*.*  \ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day1
del /q \ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day0
exp gymz/gymz@myoracle log=gymz_exp%DATE:~4,10%.log file=\ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\day0\gymz_backup%DATE:~4,10%.dmp owner=gymz
  
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¡¡¡¡b¡¢exp gymz/gymz@myoracle file=d:/%DATE:~4,10%.dmp log=d:/%DATE:~4,10%.log
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   н¨·½Ê½(¶þ)£ºÔÚcmd ÖÐÔËÐÐн¨¼Æ»®  at 12:47 /every:W D:\ÒµÎñÊý¾Ý±¸·Ý\gymz\backup\backup.cmd £¨ÔÚÿ¸öÐÇÆÚÈýµÄ12£º   47¶¨Ê±Ö´ÐУ©
      


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ORACLE±¸·Ý²ßÂÔ(ORACLE BACKUP STRATEGY)

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oracleÊý¾Ý¿âʱ³£ÓõIJÙ×÷ÃüÁîÕûÀí

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1¡¢su – oracle ²»ÊDZØÐ裬ÊʺÏÓÚûÓÐDBAÃÜÂëʱʹÓ㬿ÉÒÔ²»ÓÃÃÜÂëÀ´½øÈësqlplus½çÃæ¡£
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SQL ServerÀïµÄ ISNULL Óë Oracle ÖÐµÄ NULLIF

SQL ServerÀïµÄ ISNULL Óë Oracle ÖÐµÄ NULLIF²»Í¬:
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package com.deng.oracle;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class TestOracle {
public static void main(String[] args) {
try {
Class.forName("oracle.jdbc.driver.OracleDriv ......
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