Any ideas on

Hi All!

I develop a project that uses MySQL database as a data storage. I have
gotten a request from my manager to investigate the possibility to
create an adaptor that will utilize virtually any database instead of
mysql built-in. It will cover the case if customer wants to retain his
database as data storage but still use our software. I am thinking
about creating set of GUIs and APIs which will map tables, queries and
relations... It's quite challengeable. Is it possible? Did somebody
face this problem before?
Any ideas are highly appreciated!
Thank you.