ORACLE中用SQL语句创建表空间、创建用户

1、创建表空间

//创建表空间  
create tablespace DEMOTABLESPACE
datafile 'E:/tablespace/DEMOTABLESPACE.dbf' 
size 1500M 
autoextend on next 5M maxsize 3000M;  
//删除表空间  
drop tablespace DEMOTABLESPACE including contents and datafiles 

有时候会出现不能加.dbf后缀的情况，原因我不清楚
可以只填路径，不填dbf具体位置

create tablespace DEMOTABLESPACE
datafile 'E:/tablespace' 
size 1500M 
autoextend on next 5M maxsize 3000M;  
//删除表空间  
drop tablespace DEMOTABLESPACE including contents and datafiles 

2、新建用户

用户  
建立：create user *_username* identified by *_password*;  
授权：grant create session to username;  
grant create table to username ;  
grant create tablespace to username ;  
grant create view to username ;  
授予用户使用表空间的权限：  
alter user 用户名 quota unlimited on 表空间;  
或 alter user 用户名 quota *M on 表空间;  

例子

--表空间 
CREATE TABLESPACE sdt 
DATAFILE 'F:\tablespace\demo' size 800M 
 EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;   
--索引表空间 
CREATE TABLESPACE sdt_Index 
DATAFILE 'F:\tablespace\demo' size 512M 
 EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;       

--2.建用户 
create user demo identified by demo 
default tablespace std;  

--3.赋权 
grant connect,resource to demo;  
grant create any sequence to demo;  
grant create any table to demo;  
grant delete any table to demo;  
grant insert any table to demo;  
grant select any table to demo;  
grant unlimited tablespace to demo;  
grant execute any procedure to demo;  
grant update any table to demo;  
grant create any view to demo;