Setting the resource file I want to use (not using localization)

Hello there!

I read about you can use .resx resource files automatically according the Localization of the App, so if you have MyData.en.resx and MyData.es.resx, it will use one or another according if the device language is set as englis or spanish.

I wonder if I can use something like that, in order to set if my WebApi must use one or another SQL scripts, for example, SQL Server or Oracle SQL sentences, according to some preprocessor directive, global variable or programm parameter.
As far as I look for information, all the data I get is for using them with Localization.

Thank you!