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How to Make a Column NULL for Insert and NOT NULL for Update in MySQL

How to Make a Column NULL for Insert and NOT NULL for Update in MySQL

Discover how to effectively manage column constraints in MySQL, allowing for `NULL` values during insertion but enforcing `NOT NULL` during updates. --- This video is based on the question https://stackoverflow.com/q/65890041/ asked by the user 'Daniel Lopes' ( https://stackoverflow.com/u/15078759/ ) and on the answer https://stackoverflow.com ...

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