+2 votes


When trying to connect to oracle database (pdbTest on Dev server) i'm getting the following error, an idea please?

enter image description here

Thank you in-advance for your help

Best Regards.

asked in Errors by (559 points)
Hi Ammar, could you please tell me which version you installed?

If i remeber well it was express edition (xe) from this link http://www.oracle.com/technetwork/database/database-technologies/express-edition/downloads/index.html
Best regards.

1 Answer

+2 votes
Best answer

Check the Oracle client software, do you have the 64-bit version installed?

Secondly, check the NTFS permissions on the Oracle folder. Make sure your user can read the tnsnames.ora file

answered by (7.4k points)
selected by
Hello Kristof,

yes indeed, i had 64-bit version already installed, i uninstall it and installa the 23-bit version and it works.

Thank you.
Best Regards.
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