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> NULL in SQL really isn't great. For one, nullable table columns is a bad default, and you have to explicitly write out "NOT NULL" to avoid this behavior. Thi
by grumpydba 8y ago
> NULL in SQL really isn't great. For one, nullable table columns is a bad default, and you have to explicitly write out "NOT NULL" to avoid this behavior.
This is not true on many dbms. It's an implementation choice.