ALTER table - column required

Hey guys, quick question. I have a table that is created and that you just want to make one of the columns is required. What is this done by following these steps:

ALTER TABLE < my_table >
ALTER COLUMN < my_column > MANDATORY

If this isn't the case, could someone guide me on how to do it.

Thank you.

ALTER TABLE CHANGE NOT NULL;

Tags: Database

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    This leads me to think that maybe I'm just bumping into a limit in the free version of PC.

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