注意：每条语语分开执行，结尾必须用分号;
//创建空间
create tablespace test
datafile 'c:/oracle/oradata/orcl9/test.dbf' size 50M
default storage (initial 500K
Next 500K
minextents 1
maxextents unlimited
pctincrease 0);

//创建用户
create user lxg identified by lxg default tablespace test;
//授权　
grant resource,connect,dba to test;

//删除表空间
drop tablespace "空间名" including contents and datafiles

删除用户
drop user "lxg" cascade

增加表空间
alter tablespace chinawater add datafile 'c:/oracle/oradata/orcl9/ADDCHINAWATER.dbf' size 200M
 
创建用户
create user userName identified by password;
创建用户 userName,密码为 password
2
给用户授权
grant dba to lxg;--授予DBA权限
grant unlimited tablespace to lxg;--授予不限制的表空间
grant select any table to lxg;--授予查询任何表
grant select any dictionary to lxg;--授予 查询 任何字典
 
grant dba to lxg;
grant unlimited tablespace to lxg;
grant select any table to lxg;
grant select any dictionary to lxg;