【故障处理】ORA-12162 错误的处理

【故障处理】ORA-12162: TNS:net service name is incorrectly specified

一.1 场景

今天拿到一个新的环境，可是执行sqlplus / as sysdba的时候不能登录，报ORA-12162: TNS:net service name is incorrectly specified的错误，之前没有碰到过，就随时记录下，备查。

一.2 实验还原

Last unsuccessful login: Thu Mar 19 16:59:06 BEIST 2015 on /dev/pts/0 from 200.31.177.54 Last login: Thu Jul 16 22:44:20 BEIST 2015 on ftp from ::ffff:200.31.156.201 ******************************************************************************* * * * * * Welcome to AIX Version 5.3! * * * * * * Please see the README file in /usr/lpp/bos for information pertinent to * * this release of the AIX Operating System. * * * * * ******************************************************************************* oracle@SJCk4:/home/oracle> oracle@SJCk4:/home/oracle> oracle@SJCk4:/home/oracle>ps -ef|grep ora_pmon_ oracle 348182 1 0 Apr 25 - 7:42 ora_pmon_DATAWDB oracle 630842 1 0 Apr 25 - 20:02 ora_pmon_COGDB oracle 843948 1 0 Apr 25 - 6:45 ora_pmon_ETLDB oracle 5005418 4427974 0 09:44:03 pts/0 0:00 grep ora_pmon_ oracle@SJCk4:/home/oracle>ORACLE_SID=DATAWDB oracle@SJCk4:/home/oracle>echo $ORACLE_SID DATAWDB oracle@SJCk4:/home/oracle> oracle@SJCk4:/home/oracle>sqlplus / as sysdba SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jul 17 09:56:44 2015 Copyright (c) 1982, 2005, Oracle. All rights reserved. ERROR: ORA-12162: TNS:net service name is incorrectly specified Enter user-name: ERROR: ORA-12162: TNS:net service name is incorrectly specified Enter user-name: ERROR: ORA-12162: TNS:net service name is incorrectly specified SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus oracle@SJCk4:/home/oracle>echo $ORACLE_HOME /app/oracle/product/10.2.0/db_1 oracle@SJCk4:/home/oracle>echo $ORACLE_SID DATAWDB oracle@SJCk4:/home/oracle> oracle@SJCk4:/home/oracle> oracle@SJCk4:/home/oracle> oracle@SJCk4:/home/oracle> oracle@SJCk4:/home/oracle>export ORACLE_SID=DATAWDB oracle@SJCk4:/home/oracle>sqlplus / as sysdba SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jul 17 09:59:27 2015 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production With the Partitioning, OLAP and Data Mining options SQL> SQL>

一.3 总结

[oracle@rhel6_lhr ~]$ oerr ora 12162 12162, 00000, "TNS:net service name is incorrectly specified" // *Cause: The connect descriptor corresponding to the net service name in // TNSNAMES.ORA or in the directory server (Oracle Internet Directory) is // incorrectly specified. // *Action: If using local naming make sure there are no syntax errors in // the corresponding connect descriptor in the TNSNAMES.ORA file. If using // directory naming check the information provided through the administration // used for directory naming. [oracle@rhel6_lhr ~]$ 可以确定的是ORA-12162是由于ORACLE_SID未设置或者设置不正确导致的，推荐使用export ORACLE_SID=XXX来设置，当不能设置的时候再用ORACLE_SID=XXX来直接设置。 另外的一篇blog参考：http://blog.itpub.net/26736162/viewspace-1735917/

一.4 About Me

........................................................................................................................................................................................... 本文作者：小麦苗，只专注于数据库的技术，更注重技术的运用 ITPUB BLOG：http://blog.itpub.net/26736162 本文地址：http://blog.itpub.net/26736162/viewspace-1736192/ 本文pdf版：http://yunpan.cn/QCwUAI9bn7g7w 提取码：af2d QQ：642808185 若加QQ请注明你所正在读的文章标题 创作时间地点：2015-07-17 10:00~ 2015-07-17 19:00 于外汇交易中心 <版权所有，文章允许转载，但须以链接方式注明源地址，否则追究法律责任!> ...........................................................................................................................................................................................