Erro Ora-12154

[facc]

Estou recebendo esse erro quando tento acessar o oracle via Visual Studio 2008, pelo componente SQLDataSource, o engraçado é se eu fizer a conexão via código, consigo acessar normalmente, também consigo acesso pelo PL/SQL e SQL*Plus.

Instalei o Oracle 11g Release 2 ODAC 11.2.0.1.2 with Oracle Developer Tools for Visual Studio (o mais recente).

alguém poderia me ajudar?

[diegopedrao]

Selecionar tudo

ORA-12154 TNS:could not resolve service name Oracle version: 8i  
 
  
  Cause: The service name specified is not defined correctly in the TNSNAMES.ORA file.  
  
  Action: Make the following checks and correct the error: 
- Verify that a TNSNAMES.ORA file exists and is in the proper place and accessible. See 
the operating system specific manual for details on the required name and location.
- Check to see that the service name exists in one of the TNSNAMES.ORA files and add it 
if necessary.
- Make sure there are no syntax errors anywhere in the file. Particularly look for 
unmatched parentheses or stray characters. Any error in a TNSNAMES.ORA file makes it 
unusable. See Chapter 4 in the SQL*Net V2 Administrator's Guide. If possible, regenerate 
the configuration files using the Oracle Network Manager.  
  

  
ORA-12154 TNS:could not resolve the connect identifier specified Oracle version: 10g  
 
  Cause: A connection to a database or other service was requested using a connect identifier, 
  and the connect identifier specified could not be resolved into a connect descriptor using 
  one of the naming methods configured. For example, if the type of connect identifier used 
  was a net service name then the net service name could not be found in a naming method 
  repository, or the repository could not be located or reached.  
  
  Action: 

- If you are using local naming (TNSNAMES.ORA file):

- Make sure that "TNSNAMES" is listed as one of the values of the NAMES.DIRECTORY_PATH 
parameter in the Oracle Net profile (SQLNET.ORA)

- Verify that a TNSNAMES.ORA file exists and is in the proper directory and is accessible.

- Check that the net service name used as the connect identifier exists in the TNSNAMES.ORA file.

- Make sure there are no syntax errors anywhere in the TNSNAMES.ORA file. Look for unmatched 
parentheses or stray characters. Errors in a TNSNAMES.ORA file may make it unusable.

- If you are using directory naming:

- Verify that "LDAP" is listed as one of the values of the NAMES.DIRETORY_PATH parameter 
in the Oracle Net profile (SQLNET.ORA).

- Verify that the LDAP directory server is up and that it is accessible.

- Verify that the net service name or database name used as the connect identifier is 
configured in the directory.

- Verify that the default context being used is correct by specifying a fully qualified 
net service name or a full LDAP DN as the connect identifier

- If you are using easy connect naming:

- Verify that "EZCONNECT" is listed as one of the values of the NAMES.DIRETORY_PATH parameter 
in the Oracle Net profile (SQLNET.ORA).

- Make sure the host, port and service name specified are correct.

- Try enclosing the connect identifier in quote marks. See the Oracle Net Services Administrators 
Guide or the Oracle operating system specific guide for more information on naming.

Retidado de :

http://www.ora-error.com/error.php

Att,

DIego Monteiro

[facc]

Obrigado pela resposta, mas eu consigo acessar de outros locais a mesma base e no mesmo servidor.

O erro só acontece no Visual Studio 2008!!

[diegopedrao]

Você tem instalado vários ORACLE_HOME na máquina?

Isso pode acontecer devido a vários clientes instalados, ou seja, uma aplicação um Oracle_HOME e outra aplição usa a outra instalação como HOME. Se for isso você tem que copiar o TNS completo para a outra HOME.

Att,

Diego Monteiro