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;