运行cmd命令行
忘记密码
录入 sqlplus /nolog 无用户名登录
conn /as sysdba 连接到数据本地数据
alter user system identified by password; 修改System 密码 为password
解锁方法
alter user system account unlock;
解锁
select * from dba_profiles where profile=\'DEFAULT\' and resource_name=\'FAILED_LOGIN_ATTEMPTS\';
alter profile default limit failed_login_attempts unlimited;
alter user 用户名 account unlock;