Hi there
Since you have some programming background, JS is good idea. Before you start learning one question will help you. Qlingo work 2 way 1st is more for design or web artwork where you need fewer databases or may be basic database like excel file or access MDB file.
And 2nd is work with many database or many tables in one database. You can ask your self rather your work is going to be more on graphic or more on database mining (your company is art studio or a web solutions!!)
On base of this answer you can decide rather to go for JS if your company is dealing more in creative and less complex database or you can choose Ms Sql or VB or asp.Net if your company is dealing with more complex web solutions.
I believe there are few more people are there in this forum who will provide you better feedback.
regards
Pranav