Oracle常用命令笔记

无密码登陆：sys  as sysdba

查看当前的所有数据库：select */name from v$database;

查看当前数据库连接用户：show user

查看当前数据所有表：select table_name from all_tables;

查看结构：如表结构：desc table1    --需在命令窗口模式下

新建数据库用户：create user username identified by password

授权：grant dba to username

更改数据库用户密码：alter user username identified by password

查看数据库里面所有用户，前提是你是有dba权限的帐号，如sys,system:select * from dba_users

查看你能管理的所有用户:select * from all_users

查看当前用户信息 :select * from user_users

导出：exp system/[email protected] file=d:\daochu.dmp full=y

导入：imp
system/[email protected]  file=d:\daochu.dmp