oracle 数据泵导入导出
导出
首先建立directory,directory是存放备份文件的路径(导入导出都要建立,对应的C:/exp文件夹如果不存在,需要手工建立)
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6SQL> connect sys/123456 as sysdba
SQL> create or replace directory expdir as 'C:/exp';
SQL> grant read,write on directory expdir to public;
#查看directory是否创建成功
SQL> select * from dba_directories;
SQL> commit;使用expdp命令导出某个用户的数据
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expdp kliu_voi5/1234@orcl schemas=kliu_voi5 dumpfile=kliu_voi5.dmp directory=expdir
其中kliu_voi5/1234是用户名密码,orcl是oracle的sid。该命令完成后在c:\exp下会有kilu_voi5.dmp文件
- 如果只是要导出某些表,可以使用include
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expdp kliu_voi5/1234@orcl schemas=kliu_voi5 dumpfile=kliu_voi5.dmp directory=expdir include=table:\"like \'CT%\'\"
导入
首先建立directory
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5SQL> connect sys/123456 as sysdba
SQL> create or replace directory db_bak as 'd:/db_bak';
SQL> grant read,write on directory db_bak to public;
SQL> select * from dab_directories;
SQL> commit;如果是在新的oracle数据库里,需用重建同样的用户
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4SQL> connect sys/123456 as sysdba
SQL> create user kliu_voi5 identified by "1234";
SQL> grant dba to kliu_voi5;
SQL> commit;使用impdp命令导入某个用户的数据
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impdp kliu_voi5/1234@orcl directory=db_bak dumpfile=kliu_voi5.dmp full=y
帮助使用方法
- 导出命令打印帮助信息
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expdp help=y