数据导出
1.创建directory
create or replace directory DIR as '/home/oracle/';
2.查询创建的directory 注:也可以直接写全路径。
select * from dba_directories where DIRECTORY_NAME = 'DIR'
3.给用户授予增删改查的权限
grant read,write on directory DIR to user_name;
4.导出命令
expdp user_name/user_pwd@orcl TABLES=table_name1,table_name2 dumpfile=dmp_name.dmp DIRECTORY=DIR;
数据导入(数据还原)
impdb user_name/user_pwd@orcl DIRECTORY=DIR DUMPFILE=dmp_name.dmp FULL=y;
impdp user_name/user_pwd@orcl directory=DIR dumpfile=dmp_name.DMP logfile=dmp_name.log table_exists_action=replace cluster=n FULL=y