ORA-12154

[davidcastilholi]

Boa tarde amigos, estou com um problema ao conectar no forms, esta retornando a seguinte msg:

ORA-12154: TNS:não foi possível resolver o identificador de conexão especificado

Estou acessando o banco de dados via sqlplus e a conexão funciona normalmente, mas através do forms dá o respectivo erro.

Aguardo retorno.

[dr_gori]

Primeiro, aqui está o erro que você está se referindo:

ORA-12154:
TNS:could not resolve the connect identifier specified

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.

BOM, talvez tenha 2 oracle homes diferentes e cada um ta pegando um TNS diferente.
O SQL*Plus está pegando o certo, e talvez o Forms não.
EU gosto de usar a dica do TNS_ADMIN no registro do windows que nunca dá confusão com TNSNAMES.ora.
Essa dica força um diretório pro TNSNAMES.ora, daí você nunca precisa se preocupar.

Veja:
http://glufke.net/oracle/viewtopic.php?t=214
http://glufke.net/oracle/viewtopic.php?f=2&t=4943

[davidcastilholi]

Boa tarde dr_gori, fiz da forma que você informou, criando o TNS_ADMIN e deu certo.

Muito obrigado.