이 레슨은 당분간 영어로 제공돼요.
Only the rows you want
So far every query returned the whole table. WHERE keeps only the rows that pass a test, which is how an app finds your posts among everyone else's.
이 레슨은 당분간 영어로 제공돼요.
So far every query returned the whole table. WHERE keeps only the rows that pass a test, which is how an app finds your posts among everyone else's.