Change URL from http to https

Hi all,

I have an easy question.

Looking for a way to change all the urls in the database from http to https. Basically we have hundreds on href links where the refernced image has a link such as

And need to change it to:

Basically, only http >> https part of the url needs to change.

What do I need to run in phpmyadmin to find all ref and change it?

Thank you.

Drupal version: