create user SA identified by 2013;

/*授权connect,resource给用户sa*/
grant connect,resource to sa;

/*查询所有的用户*/
select * from all_users;

/*将表STU查询权限授予SA*/
GRANT SELECT ON STU TO SA

/*将表STU添加权限授予SA*/
GRANT INSERT ON STU TO SA

/*将表STU更新权限授予SA*/
GRANT UPDATE ON STU TO SA

/*将表STU删除权限授予SA*/
GRANT DELETE ON STU TO SA

/*建表指定表空间*/
create table KC(KC_NO varchar2(10) not null,KC_NAME varchar2(50) not null) tablespace TEST;

create table STU(STU_ID varchar2(10) not null,STU_NAME varchar2(50) not null,STU_AGE number(2) not null,STU_SET number(2) not null,

KC_NO varchar2(10) not null) tablespace TEST;

/*创建约束，设置主键*/

ALTER TABLE STU ADD PRIMARY KEY(STU_ID) 

ALTER TABLE KC ADD PRIMARY KEY(KC_NO) 

/*查看表空间的表*/
Select table_name, tablespace_name from dba_tables where tablespace_name='TEST'

/*查询所有的表*/
select table_name,tablespace_name,temporary from user_tables