Subject Simulating Boolean field
Author Bc. Jiri Cincura

today morning I was thinking about the Boolean simulation in FB 1.5 . I've
found two solutions.
1: char(1) with 'T' and 'F' and some validation (check, trigger)
2: char(1) with X (as Yes/True) and NULL (No/False)

What's better (performance, management, ...)?
How you're working with Boolean?

Bc. Jiri Cincura
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