CSI 9.01.01 on prem. I have a need to call some SQL functions/stored procedures in SQL from within my C# IDO Extension Class. Originally, I had my Extension Classes using ExtensionClassBase. This gave me access to CreateAppDB(). I'm now using IDOExtensionClass which now uses the CreateApplicationDB(). I believe this is what I'm supposed to be doing, as I found this section in the IDO guide :

I cannot get anything to run properly if I use CreateApplicationDB(). Instead of using Microsoft SQL calls/libraries its using IDCommand/etc.
Should I be using CreateApplicationDB? Is CreateAppDB being depricated? Does anyone have any working examples of using CreateApplicationDB to call SQL SP's and functions?