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) accessible. 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). is configured in the directory. 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). Administrators Guide or the Oracle operating system specific guide for more information on naming.
