search
HomeDatabaseMysql TutorialOracle连接出现ora-12154

Oracle连接出现ora-12154


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

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:
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

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

以上答案供参考

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
How to use MySQL functions for data processing and calculationHow to use MySQL functions for data processing and calculationApr 29, 2025 pm 04:21 PM

MySQL functions can be used for data processing and calculation. 1. Basic usage includes string processing, date calculation and mathematical operations. 2. Advanced usage involves combining multiple functions to implement complex operations. 3. Performance optimization requires avoiding the use of functions in the WHERE clause and using GROUPBY and temporary tables.

An efficient way to batch insert data in MySQLAn efficient way to batch insert data in MySQLApr 29, 2025 pm 04:18 PM

Efficient methods for batch inserting data in MySQL include: 1. Using INSERTINTO...VALUES syntax, 2. Using LOADDATAINFILE command, 3. Using transaction processing, 4. Adjust batch size, 5. Disable indexing, 6. Using INSERTIGNORE or INSERT...ONDUPLICATEKEYUPDATE, these methods can significantly improve database operation efficiency.

Steps to add and delete fields to MySQL tablesSteps to add and delete fields to MySQL tablesApr 29, 2025 pm 04:15 PM

In MySQL, add fields using ALTERTABLEtable_nameADDCOLUMNnew_columnVARCHAR(255)AFTERexisting_column, delete fields using ALTERTABLEtable_nameDROPCOLUMNcolumn_to_drop. When adding fields, you need to specify a location to optimize query performance and data structure; before deleting fields, you need to confirm that the operation is irreversible; modifying table structure using online DDL, backup data, test environment, and low-load time periods is performance optimization and best practice.

How to analyze the execution plan of MySQL queryHow to analyze the execution plan of MySQL queryApr 29, 2025 pm 04:12 PM

Use the EXPLAIN command to analyze the execution plan of MySQL queries. 1. The EXPLAIN command displays the execution plan of the query to help find performance bottlenecks. 2. The execution plan includes fields such as id, select_type, table, type, possible_keys, key, key_len, ref, rows and Extra. 3. According to the execution plan, you can optimize queries by adding indexes, avoiding full table scans, optimizing JOIN operations, and using overlay indexes.

How to use MySQL subquery to improve query efficiencyHow to use MySQL subquery to improve query efficiencyApr 29, 2025 pm 04:09 PM

Subqueries can improve the efficiency of MySQL query. 1) Subquery simplifies complex query logic, such as filtering data and calculating aggregated values. 2) MySQL optimizer may convert subqueries to JOIN operations to improve performance. 3) Using EXISTS instead of IN can avoid multiple rows returning errors. 4) Optimization strategies include avoiding related subqueries, using EXISTS, index optimization, and avoiding subquery nesting.

How to configure the character set and collation rules of MySQLHow to configure the character set and collation rules of MySQLApr 29, 2025 pm 04:06 PM

Methods for configuring character sets and collations in MySQL include: 1. Setting the character sets and collations at the server level: SETNAMES'utf8'; SETCHARACTERSETutf8; SETCOLLATION_CONNECTION='utf8_general_ci'; 2. Create a database that uses specific character sets and collations: CREATEDATABASEexample_dbCHARACTERSETutf8COLLATEutf8_general_ci; 3. Specify character sets and collations when creating a table: CREATETABLEexample_table(idINT

How to uninstall MySQL and clean residual filesHow to uninstall MySQL and clean residual filesApr 29, 2025 pm 04:03 PM

To safely and thoroughly uninstall MySQL and clean all residual files, follow the following steps: 1. Stop MySQL service; 2. Uninstall MySQL packages; 3. Clean configuration files and data directories; 4. Verify that the uninstallation is thorough.

How to rename a database in MySQLHow to rename a database in MySQLApr 29, 2025 pm 04:00 PM

Renaming a database in MySQL requires indirect methods. The steps are as follows: 1. Create a new database; 2. Use mysqldump to export the old database; 3. Import the data into the new database; 4. Delete the old database.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool