Tuesday, 19 March 2013

ORA 12154 error after install new OS windows 7 and PL/SQL tool

we are getting ORA 12154 error from my PL/SQL application for new OS windows7

The TNS entries are perfect and oracle home is set properly, but I couldn't login.


There are two program files folder in windows 7. one is 'Program files' and other one is 'Program Files(x86)'.
While installing oracle I've selected 'Program Files(x86)' as destination. That' the reason for the error.
I've moved the ‘PLSQL Developer’ folder to the 'Program Files' folder and it has worked.


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