How to fix the Oracle error ORA-12197: TNS:keyword-value resolution error?

In this post, you’ll learn more about the Oracle ErrorORA-12197: TNS:keyword-value resolution error with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12197: TNS:keyword-value resolution error

Reason for the Error ORA-12197: TNS:keyword-value resolution error

The navigation layer received an error while trying to look up a value for a keyword.

How to fix the Error ORA-12197: TNS:keyword-value resolution error ?

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

Check the syntax of the connect descriptor.