错误描述:
在进行ADG实验当中发现本地db服务器不能使用listener.ora文件中的服务名进行登录,命令如下:
[oracle@dba1 admin]$ sqlplus sys/oracle@dba1:1521/BEIJING_DGMGRL as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Wed Mar 26 17:15:38 2014
Copyright (c) 1982, 2013, Oracle. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
问题分析:
本以为是服务名区分大小写或者服务名设置错误,后经过测试都排除了。最后经过网友的指点才发现原来是sqlnet.ora文件设置问题。
解决方法:
默认sqlnet.ora 文件中 “NAMES.DIRECTORY_PATH= (TNSNAMES)”,后设置成“NAMES.DIRECTORY_PATH= (TNSNAMES,EZCONNECT)”解决,增加了参数‘EZCONNECT’ 问题解决了。
[oracle@dba1 admin]$ cat sqlnet.ora
# sqlnet.ora Network Configuration File: /u01/oracle/product/11.2.0.4/network/admin/sqlnet.ora
# Generated by Oracle configuration tools.
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
ADR_BASE = /u01/oracle
[oracle@dba1 admin]$ sqlplus sys/oracle@dba1:1521/BEIJING_DGMGRL as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Wed Mar 26 17:43:39 2014
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing options
SQL>
小结:
oracle要学习的东西还非常的多,一个非常小的细节让我困感的很长时间,许多东西还是要注意细节。
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