1、故障描述
数据库连不上
$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Tue Apr 3 11:11:12 2018
Copyright (c) 1982, 2013, Oracle. All rights reserved.
ERROR:
ORA-01017: invalid username/password; logon denied
尝试用密码登录也失败
$ sqlplus sys/system_1600 as sysdba
SQL*Plus: