ORA-12154 while importing from sql server [message #294336] |
Thu, 17 January 2008 04:46  |
doc1
Messages: 18 Registered: December 2005
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Junior Member |
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Hi!
i m new to sql server but have worked in oracle. my boss wants me to access oracle database from main server using sql server DTS. it gets connected on local system but when i try to connect it to database on server it gives me this error
ORA-12154. cudnt resolve service name
can any one tell me why is it so??
Regards.
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Re: ORA-12154 while importing from sql server [message #294340 is a reply to message #294336] |
Thu, 17 January 2008 04:59  |
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Michel Cadot
Messages: 68733 Registered: March 2007 Location: Saint-Maur, France, https...
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Senior Member Account Moderator |
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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.
Regards
Michel
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