在命令提示符下登录：sqlplus / as sysdba
创建表空间用于存放数据，存放位置随意，定义存放大小
create tablespace weixintb datafile 'C:\app\Administrator\oradata\weixin\weixintb.DBF' size 5G;
创建用户并授予权限
create user weixindb identified by weixindb default tablespace weixintb;
grant connect to weixindb;
grant dba to weixindb;
grant resource to weixindb;