Oracle笔记（日常维护）

1.设置不换行

set lines 150

set wrap off

set pagesize 1000

set trimspool on

2.查询用户

select * from dba_users;

select * from all_users;

3.查询用户的权限

3.1. oracle用户查看自己的权限和角色

        select * from user_tab_privs;

        select * from user_role_privs;

       

3.2. sys用户查看任一用户的权限和角色

        select * from dba_tab_privs;

        select * from dba_role_privs;

dba_roles

dba_role_privs

dba_sys_privs

dba_tab_privs

4.

select table_name from user_tables;

select table_name from dba_tables where owner='USERNAME';

select * from user_objects where upper(object_type)='TABLE';

select * from all_objects where object_type='TABLE' and owner='用户';

select privilege from dba_sys_privs where grantee='JCR'

union

select privilege from dba_sys_privs where grantee in (select granted_role from dba_role_privs where grantee='JCR');

select * from dba_sys_privs where grantee='JCR'

union

select * from dba_sys_privs where grantee in (select granted_role from dba_role_privs where grantee='JCR');

----查看用户全部权限

select * from dba_sys_privs where grantee='RELEASE'

union

select * from dba_sys_privs where grantee in (select granted_role from dba_role_privs where grantee='RELEASE');

 

5.表空间

1、查看表空间的名称及大小

　　select t.tablespace_name, round(sum(bytes/(1024*1024)),0) ts_size

　　from dba_tablespaces t, dba_data_files d

　　where t.tablespace_name = d.tablespace_name

　　group by t.tablespace_name;

6.用户定义

create user release identified by password default tablespace users temporary tablespace temp;

grant connect, resource to release;

7.导入导出单个用户的数据

exp system/passw0rd@instance file=E:/RELEASE.dmp owner=RELEASE;

imp system/passw0rd@instance file=E:/RELEASE.dmp FROMUSER=RELEASE TOUSER=RELEASE;