同样也是协同我一个好学且上进的同事解决SQLPLUS登陆的问题。
当他习惯的用SQLPLUS登陆时有这样的错误：
首先想到的是环境变量是否修改了，造成SID错误。但是核对无误。这时就要考虑当前数据库的登陆认证方式了，检查SQLNET.ORA文件。
注意参数 NTS 是Windows NT native authentication ，将该行屏蔽。
尝试重新登陆。
当他习惯的用SQLPLUS登陆时有这样的错误：
[root@DB_SERVER root]# su - oracle
[oracle@DB_SERVER oracle]$ sqlplus " / as sysdba"
SQL*Plus: Release 9.2.0.4.0 - Production on ÐÇÆÚ¶þ 12ÔÂ 9 17:28:35 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
ERROR:
ORA-01031: insufficient privileges
Enter user-name:
ERROR:
ORA-01017: invalid username/password; logon denied
[oracle@DB_SERVER oracle]$ sqlplus " / as sysdba"
SQL*Plus: Release 9.2.0.4.0 - Production on ÐÇÆÚ¶þ 12ÔÂ 9 17:28:35 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
ERROR:
ORA-01031: insufficient privileges
Enter user-name:
ERROR:
ORA-01017: invalid username/password; logon denied
首先想到的是环境变量是否修改了，造成SID错误。但是核对无误。这时就要考虑当前数据库的登陆认证方式了，检查SQLNET.ORA文件。
[oracle@DB_SERVER admin]$ more sqlnet.ora
# SQLNET.ORA Network Configuration File: /home/oracle/product/9.2.0.4.0/network/admin/sqlnet.ora
# Generated by Oracle configuration tools.
#NAMES.DEFAULT_DOMAIN = localdomain
#NAMES.DIRECTORY_PATH= (TNSNAMES)
SQLNET.AUTHENTICATION_SERVICES= (NONE,NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES,ONAMES,HOSTNAME)
# SQLNET.ORA Network Configuration File: /home/oracle/product/9.2.0.4.0/network/admin/sqlnet.ora
# Generated by Oracle configuration tools.
#NAMES.DEFAULT_DOMAIN = localdomain
#NAMES.DIRECTORY_PATH= (TNSNAMES)
SQLNET.AUTHENTICATION_SERVICES= (NONE,NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES,ONAMES,HOSTNAME)
注意参数 NTS 是Windows NT native authentication ，将该行屏蔽。
尝试重新登陆。
[oracle@DB_SERVER admin]$ sqlplus " / as sysdba"
SQL*Plus: Release 9.2.0.4.0 - Production on ÐÇÆÚ¶þ 12ÔÂ 9 17:31:15 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
SQL>
SQL*Plus: Release 9.2.0.4.0 - Production on ÐÇÆÚ¶þ 12ÔÂ 9 17:31:15 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
SQL>
问题得以解决。-:)
本文转自Be the miracle!博客51CTO博客，原文链接http://blog.51cto.com/miracle/118340如需转载请自行联系原作者
Larry.Yue
