windows server 2012 用sysdba登录报错 ORA-01031

SQL*Plus: Release 11.2.0.1.0 Production on 星期三 4月 24 09:09:33 2019

Copyright (c) 1982,2010,Oracle. All rights reserved.

ERROR:
ORA-01031: 权限不足

请输入用户名:

1、查看本地用户和组确认权限
将登录的用户添加进ora_dba权限组中
2、用可以登录的账号登录查看检查系统参数
SQL> show parameter password

NAME TYPE VALUE

remote_login_passwordfile string EXCLUSIVE
SQL> select * from v$pwfile_users;

USERNAME SYSDBA SYSOPER SYSASM

SYS TRUE TRUE FALSE
3、检查系统参数无sys记录，则创建密码文件,再次登录
C:UsersAdministrator>orapwd file="E:oracleproduct11.2.0dbhome_1database/PWDVIDM.ora" password=oracle oswong entries=10

4、均无异常，或修改后报ORA-12641: 验证服务无法初始化，则：
查看sqlnet.ora文件中的SQLNET.AUTHENTICATION_SERVICES配置项
路径：E:oracleproduct11.2.0dbhome_1NETWORKADMIN
修改为：SQLNET.AUTHENTICATION_SERVICES = (NTS)
正常连接
C:UsersAdministrator>sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on 星期三 4月 24 09:15:21 2019

Copyright (c) 1982,Oracle. All rights reserved.

连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning,OLAP,Data Mining and Real Application Testing options

SQL>