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Trouble connecting oracle client to oracle database in windows7 Expand / Collapse
Posted Friday, January 25, 2013 1:33 PM


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I am having a problem connecting an oracle client to an oracle database. I am also having a problem connecting an access database to oracle using an ODBC. I have been working on this for several days and I keep getting the same error: ora-12203: TNS: unable to connect to destination.
I have only one tnsnames.ora and one sqlnet.ora files on the system, I double checked. I have modified the path variable to have both the oracle home and the net80/admin in it.
The oracle client is oracle8, I know it is old and outdated, but that is what I have to work with here.

I have not used oracle for the past 10 years, can anyone supply some assistance here.
Am I missing something?

Any help would be appreciated

Post #1411925
Posted Friday, January 25, 2013 5:13 PM

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Have you also set ORACLE_HOME and ORACLE_SID environmental variables?
Can you PING the server using the same value you have on TNSNAMES.ora file?
Can you TNSPING the instance if you fully qualify the tnsping call? meaning, not relying on tnsnames.ora file?

Pablo (Paul) Berzukov

Author of Understanding Database Administration available at Amazon and other bookstores.

Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
Post #1411962
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