oracle备份之exp/imp

测试环境：oracle 11g, redhat 5.5

纯命令方式：

exp der322/der322 owner=der322 file=wox1455.dmp log=wox1455.log buffer=6000000
Drop user der322 cascade;
drop tablespace der322 including contents and datafiles;
CREATE TABLESPACE der322 DATAFILE  '/opt/oracle/oradata/ORCL/der322.dbf' size 50m autoextend on;
CREATE USER der322 IDENTIFIED BY der322 DEFAULT TABLESPACE der322 TEMPORARY TABLESPACE temp QUOTA UNLIMITED ON der322;
grant connect,resource to der322;
grant imp_full_database to der322;
imp der322/der322 fromuser=der322 touser=der322 file=wox1455.dmp log=wox1455.log ignore=y

据说用pl/sql developer也可以做到导出表，可是我尝试了几次都没导出成功，一个黑色窗口一闪而过，无法看到错误信息，就先搁着了。