RAISE NOTICE ' Column sleep_date DATE added to sleep_sessions (IF NOT EXISTS)'; RAISE NOTICE ' UNIQUE INDEX uq_sleep_user_device_date created (IF NOT EXISTS)'; RAISE NOTICE ' Constraint: (user_id, ...
Sometimes we need to add ulterior constraints to the table we define. The ALTER TABLE statement enables us to do this. There are several types of constraints we can add. If we want to ensure that all ...
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