TL;DR - Data Dictionary Viewer doesn’t have this detail.
BAQ is vague about datatypes, which leads to frequent footgun events for BAQ users with more than a little SQL experience. At least when doing valid nvarchar operations fails on a text datatype, the error message is usually enough to point someone who knows what datatypes are in the right direction. decimal on the other hand… There’s no indication that one is float or numeric or real or decimal(19,9) or decimal(12,2), and then you do math, and implicit conversion silently avoids your expected outcome. I do know how to poke and prod the facts out of BAQ, but the novelty’s worn off. Got any shortcuts?