The mobile application is only a front-end.
To fetch data from an existing MySQL database, you will need a back-end service that connects to the database and call that service from the mobile application (from RhoMobile through an XHR request).

The back-end service is up to you. If you already have a MySQL database, you probably also already have a back-end service to fetch data (in PHP/Python/Ruby/ASP/whatever).
The easier is to render in json or xml from your back-end service and fetch it with Rhomobile.

Cheers,

Thomas

Priya Saini

Priya Saini

What really strikes me about your write-up is how few real difference there are between the languages themselves. It was the tooling (and performance) that required you to choose one over the other. As a contrast, Java and C# are often considered very similar languages but you would encounter far more difference in rewriting a modern C# in Java than you did moving from Ruby to Python.

Now, having used “blocks” most seriously in other languages like C# and Scala, I know that sometimes blocks offer more than just the cosmetic differences detailed above, but otherwise it is actually amazing the two languages are so similar.