概述
配置好rac后,两个节点用tnsping都可以ping通,但用sqlplus连接都出现以下错误,不知道哪里出了问题
[oracle@rac2 admin]$ lsnrctl status
LSNRCTL for Linux: Version 9.2.0.4.0 - Production on 04-MAR-2008 08:32:26
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=rac2)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 9.2.0.4.0 - Production
Start Date 04-MAR-2008 08:29:03
Uptime 0 days 0 hr. 3 min. 22 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File /home/oracle/9.2.0.4/network/admin/listener.ora
Listener Log File /home/oracle/9.2.0.4/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rac2)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "esal" has 2 instance(s).
Instance "rac1", status READY, has 1 handler(s) for this service...
Instance "rac2", status READY, has 1 handler(s) for this service...
The command completed successfully
[oracle@rac2 admin]$ lsnrctl service
LSNRCTL for Linux: Version 9.2.0.4.0 - Production on 04-MAR-2008 08:32:32
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=rac2)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "esal" has 2 instance(s).
Instance "rac1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
REMOTE SERVER
(address=(protocol=tcp)(host=rac1)(port=1521))
Instance "rac2", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
The command completed successfully
[oracle@rac2 admin]$ sqlplus cy/zh@esal
SQL*Plus: Release 9.2.0.4.0 - Production on Tue Mar 4 08:32:45 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve service name
Enter user-name:
ERROR:
ORA-01017: invalid username/password; logon denied
Enter user-name: cy/zh@rac1
ERROR:
ORA-12154: TNS:could not resolve service name
SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus
[oracle@rac2 admin]$ sqlplus cy/zh@rac2
SQL*Plus: Release 9.2.0.4.0 - Production on Tue Mar 4 08:32:59 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve service name
Enter user-name:
按照如下过程,一般都能解决:
在虚拟机内开cmd,用lsnrctl status查看监听器监听的服务
如看到监听服务“orcl”,那在本机的tns配置中(SERVICE_NAME = orcl)必须写orcl;如果想要自定义,则在虚拟机内的listener配置中就要加入自定义服务名,记得要重启监听服务:lsnrctl reload
最后形成的配置文件如下
虚拟机listener:
SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = test) 自定义服务名 (ORACLE_HOME = E:oracleproduct10.2.0db_1) db_home (SID_NAME = test) ) (SID_DESC = (PROGRAM = extproc) (SID_NAME = PLSExtProc) (ORACLE_HOME = E:oracleproduct10.2.0db_1) ##这个服务保证你可以使用外部过程,如C程序 ) )
本机tns:
ORCL_XNJ = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 182.12.15.232)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = test) 与自定义服务名对应 ) )
再次连接,问题解决!
记住,一定从最简单的原因找起,不要一上去就看到网上的什么改process数、注册表之类的,要想想本机能连为什么通过网络就不行,还是定位问题。
VS2008连接oracle 出现错误 ora-12154 tns 无法解析指定的连接标示符
在保证你的代码没有错误的前提下:
(一)检查OracleOraDb10g_home1TNSListener 服务有没有启动,即监听服务
(二)检查tnsnames.ora是否添加连接串(建议用SQLPLUS或者pl/sql测试),其路径一般是:%Oracle_home%product10.2.0db_1NETWORKADMINtnsnames.ora
其它网友的补充:
今天装oracle安装都完成了,但出现了“ORA-12154 TNS”的错误,最开始以为是oracle安装处了问题,但后来发现并不是,因为用SQL Plus可以登录,只是用plsql登录时才出现这错,用360完全卸载了qlsql后,从新装了次,还是那错,郁闷。。。后来又把数据库删掉重新建立,还是不行,整了半天,最后自己都整晕了,算了,重头再来吧。。。
百度下很多安装图解,按着来就成
oracle服务端安装图解
http://www.uoften.com/article/108555.htm
oracle客户端安装图解
http://www.uoften.com/article/108556.htm
oracle完全卸载
http://www.uoften.com/article/96395.htm
或者直接在注册表中按F3搜索oracle,删除注册文件,不过貌似文件有点多,操作有点慢,建议用上边链接的方法
总结了下要注意的几点
1.安装服务端是一般选“基本安装”就行
2.使用PLSQL Developer时,“ORA-12154 TNS无法解析指定的连接标识符”的问题
安装时报后边的错“warning some oracle net versions cannot connect from a path with parentheses”,这错原来提示了,不能有括号,修改了安装路径就没有问题了
相应的上边的“ORA-12154 TNS无法解析指定的连接标识符”错也没啦,有点晕,没整明白,但确实好啦
3.“ORA-12154 TNS无法解析指定的连接标识符”按照网上的方法有两种,但我试了,在我这都不好使,下边贴出来,没准儿啥时候可以用
1.解决办法,修改PLSQL Developer的选项设置:
客户端、服务器端Oracle软件装好之后,用PLSQL Devloper登录时,点击取消,进入PLSQL Developer主界面,菜单Tools-Preferences,在设置窗口中,选择Oracle-Connection,对应设置窗口中,找到Oracle Home,选择OraDb10g_home1,保存设置,重新登录PLSQL Developer即可
2.修改D:\oracle\product\10.2.0\db_1\NETWORK\ADMIN路径下的tnsnames.ora文件
###### 一般的配置 ##################################
ORALOCAL = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521)) ) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = oralocal) ) )
以上答案供参考
最后
以上就是土豪蚂蚁为你收集整理的Oracle连接出现ora-12154无法解析指定的连接标识符的全部内容,希望文章能够帮你解决Oracle连接出现ora-12154无法解析指定的连接标识符所遇到的程序开发问题。
如果觉得靠谱客网站的内容还不错,欢迎将靠谱客网站推荐给程序员好友。
发表评论 取消回复