oracle(用户与表空间的管理)

数据洁癖

--1、创建临时表空间

create temporary tablespace oa_temp

    tempfile 'c:dataoa_temp_001.dbf' size 1024m

    extent management local;

--2、创建用户数据表空间

create tablespace oa_data

    logging datafile 'c:dataoa_data_001.dbf'

    size 1024m

    reuse

    extent management local

    segment space management auto;

--3、创建用户

create user oa identified by 123456

    default tablespace oa_data

    temporary tablespace oa_temp;

--4、授权

grant connect,resource,dba to oa;

create table test(

   name varchar2(100)

);

insert into test values('测试测试');

commit;

select count(1) from test;

insert into test (select * from test);

-- 表空间的剩余空间

select

 tablespace_name,

 sum(bytes)/1024/1024

 from dba_free_space

 group by tablespace_name