启用oracle密码文件验证方式登录

Oracle验证两种方式，操作系统验证，密码文件验证

启动密码文件验证

如果数据库登录方式是操作系统验证sys登录不需要用户名和密码就可以登录

C:\Documents and Settings\wwang>sqlplus dfsdljfsdljf/jsljfls as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on
星期一 6月 11 22:28:09 2012

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

连接到:

Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production

With the Partitioning, OLAP, Data Mining and Real Application Testing option

SQL>

1． 创建口令验证文件

C:\Documents and Settings\wwang>orapwd file=D:\app\wwang\product\11.2.0\dbhome_1\database\PWDmdsp.ora entries=3

force=y password=oracle;

2． 修改初始化参数remote_login_passwordfile= EXCLUSIVE

此参数有三个exclusive
启用（单实例多用户）none 表示禁用 shared
启用（RAC多实例单用户）

3． 修改sqlnet.ora中SQLNET.AUTHENTICATION_SERVICES = (NONE)

4． 再次使用sqlplus / as sysdba登录

C:\Documents and Settings\wwang>sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on
星期一 6月 11 22:48:56 2012

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

ERROR:

ORA-01031:
权限不足

请输入用户名:

ERROR:

ORA-01017:
用户名/口令无效;
登录被拒绝

登录不输入用户名密码登录不上

只用输入正确的用户名密码才能登录

C:\Documents and Settings\wwang>sqlplus sys/oracle; as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on
星期一 6月 11 22:52:32 2012

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

连接到:

Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL>

查看v$pwfile_users

SQL> select * from v$pwfile_users;

USERNAME SYSDBA SYSOPER SYSASM

-------------------- ---------- ---------- ----------

SYS TRUE TRUE FALSE

SQL>

给用户赋予sysdba权限

SQL> grant sysdba to imuse01;

授权成功。

SQL> select * from v$pwfile_users;

USERNAME SYSDBA SYSOPER SYSASM

-------------------- ---------- ---------- ----------

SYS TRUE TRUE FALSE

IMUSE01 TRUE FALSE FALSE

因为创建口令文件entries=3只能在给3个用户赋sysdba权限（以4个位单位）

5． 如果要禁用口令文件验证修改sqlnet.ora中SQLNET.AUTHENTICATION_SERVICES = (NTS)