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Пікірлер: 5
@adnanashraf12796 жыл бұрын
Thank you, your VDOs are very helpful and easy to understand. I need a help, if you could let us know resolving duplication by group by instead of distinct in the same example.
@siyangliang597410 жыл бұрын
In 6:46, why need to rename the column as GPA? Actually, the question should be why can you select an item that doesn't exist in College table?
@botelhorui9 жыл бұрын
Siyang Liang She doesn't select a column from College. She computes a single row relation in the subquery using College.cName