1.创建用户
cmd进入输入sqlplus,回车
输入/as sysdba,回车
create user test identified by test,回车
grant connect,resource to test,回车
alter user test identified by xxx,修改test用户密码为xxx
2.找回密码
cmd进入输入sqlplus,回车
输入/as sysdba,回车
alter user mashroom identified by hao123
3.赋值权限
grant dba to mashroom;