Oracle11G自動備份

 一、以exp命令備份

     1.首先做個批處理腳本:backup.bat  腳本內容如下

        @echo off
       set curdate=%date:~0,4%%date:~5,2%%date:~8,2%
       set backuppath=D:\backup
       md %backuppath%
       exp scott/[email protected]/orcl file=%backuppath%\%curdate%.dmp owner(scott)                                    log=%backuppath%\%curdate%.log 
       forfiles /p "D:\backup" /s /m *.dmp /d -30 /c "cmd /c del @file"

    說明：在備份之前先在D盤建個backup文件夾.

   2.以Windows中的計劃任務程序來觸發這個備份腳本（以Win7爲例）

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完成配置，這個自動備份腳本會在每天10:43的時候執行，將數據備份到D:\backup文件夾下 格式爲:20151212.dmp

2.導入dmp文件的命令

spool log.txt;
drop user scott cascade;
drop tablespace SCOTT including contents and datafiles;
create tablespace SCOTT logging  
datafile 'D:\orcl\SCOTT .dbf'
size 50m  
autoextend on  
next 50m maxsize 20480m  
extent management local; 
create user scott identified by tiger default tablespace SCOTT;
grant connect,resource to scott;
grant dba to scott;
spool off;
exit;

在dos窗口輸入命名導入數據文件  imp scott/tiger@ORCL file=20151212.dmp full=Y

二、以expdp命名備份腳本如下

create directory mydmp as 'D:\backup'  --directory指定導出到本地目錄


--授權給操作用戶這個mydmp目錄的權限
grant read, write on directory mydmp to scott--需要超級管理員的賬號 sysdba


--查看一下是否存在該目錄
select * from dba_directories;

執行腳本如下

@echo off
rem set backupfile=%date:~0,4%%date:~5,2%%date:~8,2%.dmp 
rem set logfile=%date:~0,4%%date:~5,2%%date:~8,2%.log
rem delete 30days filesforfiles /p "D:\backup" /d -30  /c "cmd /c 
echo deleting @file ... && del /f @path"cd D:\backup
rem backup schemas
set backupfile=%date:~0,4%%date:~5,2%%date:~8,2%.dmp
set logfile=%date:~0,4%%date:~5,2%%date:~8,2%.log
expdp scott/tiger directory=mydmp  dumpfile=%backupfile%  logfile=%logfile% schemas=scott parallel=4

用expdp導出的必須要用impdp命令導入

impdp scott/tiger DIRECTORY=mydmp  DUMPFILE=20151212.DMP SCHEMAS=SCOTT

後記：

用expdp也會把空表也導出，非常好用。

參考博客地址:http://blog.csdn.net/cunxiyuan108/article/details/8197972

http://www.cnblogs.com/luluping/archive/2010/03/16/1687093.html