How to fix the Oracle error ORA-12196: TNS:received an error from TNS?

In this post, you’ll learn more about the Oracle ErrorORA-12196: TNS:received an error from TNS with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12196: TNS:received an error from TNS

Reason for the Error ORA-12196: TNS:received an error from TNS

The navigation layer received an error from TNS.

How to fix the Error ORA-12196: TNS:received an error from TNS ?

You can fix this error in Oracle by following the below steps

See the error log file for the specific TNS error.

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