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The Importance of Specifying Nullability

Josh Darnell points out a case where not specifying nullability on columns can lead to confusion:

I always indicate whether a column allows NULL or not in CREATE TABLE and ALTER TABLE statements.

Or, you know, I’m in the habit of doing that.

Like, I try to be in the habit.

I’m doing my best, okay?

Anyway, it’s good to be clear about nullability, because you can run into surprises when you aren’t. 

Click through for a surprise.

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