复杂的SQL查询-我该怎么做？

Question

I'm currently working on a small feature for a project and wondered how best to achieve the result, i have a table full of reviews with the score being out of 5 and being stored as score in the database, on one page i want to show how many of each score reviews there are, ie number of 5 star reviews, 4 star etc

But i don't know how best to achieve surely i don't need 5 different queries, that would be awful design would it not ?

Thanks and hope you can help !

Answer 1

Since I do not have your table structure, I would do something similar to this (with appropriate names replaced)

edited SQL based on comments

Select Score, COUNT (*) as NumScores
From MyTableOfScores
Group By Score
Order by Score Desc

Answer 2

您需要这样的东西：

select score, count(*) from reviews group by score