이 레슨은 당분간 영어로 제공돼요.
Nobody left behind
An inner join quietly drops kian and arash because they have no posts. Often those missing rows are the whole point: inactive users, posts nobody liked, players who never scored.
이 레슨은 당분간 영어로 제공돼요.
An inner join quietly drops kian and arash because they have no posts. Often those missing rows are the whole point: inactive users, posts nobody liked, players who never scored.