What languages do you already know?
I spent a lot of time on Perl, and I have a solid understanding of basic programming (functions, objects, loops, recursion, iterators etc ...)
In many project, we just need sometimes to create a small data entry program
I need either a language or a framework, that will allow me to easily create few entry screens
MS Lightswitch would have given me what I needed, except Microsoft seems to have abandoned it (At some point in time I learned enough C# to manage my way into lightswitch)
Anyway, I thinking Python's PySide might be a good option for me, since Python seem also big on Data Analysis (which is something I do a lot) But I am also checking iDempiere and Netbeans, Eclipse as possible database GUI platforms