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Jordan young
Courses Plus Student 5,277 PointsCircular logic of all of these tables "Predicting the Future".
Hi, I keep getting the right answer in a different way.
Can someone please advise if this logic of mine is distorted, and problematic?
See below:
SELECT MIN(CAPACITY) FROM ROOMS JOIN CLASSES ON CLASSES.ROOM_ID = ROOMS.ID JOIN SUBJECTS ON SUBJECTS.ID = CLASSES.SUBJECT_ID WHERE GRADE = "6";
the min Capacity here is still thirty but my way to get there might be a little different. What do you think?
1 Answer
Jennifer Nordell
Treehouse TeacherJordan young your solution is equally valid in this case. The only problem I could potentially see is if "capacity" was a field on multiple tables. For instance, if the table "Classes" also had a capacity, then you would have to specify which table you want the capacity from. That is not the case here so it understands that you want the minimum capacity from the result of the joins. And there is only one column with that name.
Otherwise, you might have to do something like SELECT MIN(Classes.Capacity) FROM CLASSES so that it would know
Hope this helps!
