Hi Aravind Palanisamy,
It doesn't affect the mendix application but you need to update the correct connection establishment for oracle to mendix.
Mendix 4.7.1. is very old now and you really should look to upgrade to one of the Long Term Support or Medium Term Support version of the platform. You are leaving yourself potentially exposed to security vulnerabilities as these older versions are no longer patched.
To find out more on the supported versions of the platform take a look at the following page.