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A comment on What does First Normal Form mean?.

Re:What does First Normal Form mean? by painchoc on Friday June 18, 2021 @01:47PM (#27552913)
What about NULLs ? Is it allowed or not ? I recently discovered on Wikipedia https://en.wikipedia.org/wiki/First_normal_form that it should not be.
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Re:What does First Normal Form mean? by goto11 on Monday June 21, 2021 @03:47AM (#27577146)
They should not be allowed according to C.F.Date, but this is quite a controversial opinion. E.F.Codd who invented the relational model thinks nulls are fine.
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