Oracle 数据库备份与还原

--登录

sqlplus/nolog

--连接sys用户

conn / as sysdba

--关闭某个触发器

ALTER TRIGGER SYS.AW_DROP_TRG DISABLE;

--删除用户

drop user username cascade;

--删除表空间

drop tablespace gdexchange;

--删除XXXX.dbf文件

--创建dbf表空间

create tablespace gdexchange logging datafile 'G:\oracle\product\10.2.0\oradata\qddz\GDEXCHANGE.dbf'  size 1g autoextend on next 1m;

--创建用户

create user username IDENTIFIED BY password DEFAULT TABLESPACE GDEXCHANGE QUOTA UNLIMITED ON GDEXCHANGE QUOTA UNLIMITED ON SYSTEM;

--授予权限

grant dba, connect,resource,create session, create table, create view, create trigger, create sequence, unlimited tablespace to username;

--退出

quit

--导入数据库

imp username/password@dbname fromuser=username touser=username file= H:\bak\qddzdbak_2017-06-29-13-39-47__quyong\dbbak\qddzdbak_2017-06-29-13-39-47.dmp log= F:\log.txt