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–Oracle 用户、对象权限、系统权限
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建立表空间和用户的步骤:
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用户
建立:create user 用户名 identified by “密码”;
授权:grant create session to 用户名;
grant create table to 用户名;
grant create tablespace to 用户名;
grant create view to 用户名;
grant resource to
grant connect,resource,dba to 用户;
select * from user_sys_privs;查询当前用户权限
grant connect,resource,dba to 用户;给dba权限
grant connect,resource to 用户;
grant unlimited tablespace to 用户;
grant create database link to 用户;
grant select any sequence,create materialized view to 用户;
grant unlimited tablespace to 用户;//授予不限制的表空间
grant select any table to 用户;//授予查询任何表
grant是关键字,select any table是权限,to后面是用户账号
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表空间
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建立表空间(一般建N个存数据的表空间和一个索引空间):
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create tablespace 表空间名
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datafile ‘ 路径(要先建好路径)\***.dbf ‘ size *M
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tempfile ‘ 路径\***.dbf ‘ size *M
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autoextend on –自动增长
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–还有一些定义大小的命令,看需要
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default storage(
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initial 100K,
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next 100k,
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);
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例子:创建表空间
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create tablespace DEMOSPACE
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datafile ‘E:/oracle_tablespaces/DEMOSPACE_TBSPACE.dbf’
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size 1500M
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autoextend on next 5M maxsize 3000M;
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删除表空间
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drop tablespace DEMOSPACE including contents and datafiles
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用户权限
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授予用户使用表空间的权限:
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alter user 用户名 quota unlimited on 表空间;
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或 alter user 用户名 quota *M on 表空间;
完整例子:
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–表空间
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CREATE TABLESPACE sdt
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DATAFILE ‘F:\tablespace\demo’ size 800M
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EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;
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–索引表空间
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CREATE TABLESPACE sdt_Index
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DATAFILE ‘F:\tablespace\demo’ size 512M
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EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;
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–2.建用户
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create user demo identified by demo
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default tablespace demo;
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–3.赋权
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grant connect,resource to demo;
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grant create any sequence to demo;
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grant create any table to demo;
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grant delete any table to demo;
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grant insert any table to demo;
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grant select any table to demo;
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grant unlimited tablespace to demo;
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grant execute any procedure to demo;
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grant update any table to demo;
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grant create any view to demo;
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–导入导出命令
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ip导出方式: exp demo/demo@127.0.0.1:1521/orcl file=f:/f.dmp full=y
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exp demo/demo@orcl file=f:/f.dmp full=y
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imp demo/demo@orcl file=f:/f.dmp full=y ignore=y
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