Google Zip Code Map Populate A Google Map With Data From A Mysql Database?

Populate a google map with data from a mysql database? - google zip code map

OK, I have a MySQL database with pieces of data (zip code) they have, I would like to appear on a Google map. I have an API, I have no idea how to prove it. It is for internal use at the moment (I want a visual, where our customers are the United States from zip), and must therefore not extravagant.

I know very little about the use of the API, but I have access to the database. Is it your imagination, or any other application simple tutorial that allowed me to show, just the data in a Google Map?

Thank you ~!