如何在 WHERE between 子句中使用 avg 表达式？

Question

我想将两个值与用户的平均评分进行比较

select * from dt_tutor_comments where avg(rating_value) BETWEEN 1 and 2 GROUP by u.id 

Answer 1

你可以试试这个吗？不要在 WHERE 子句中使用它，而是在 HAVING 子句中使用它。

SELECT u.id, AVG(rating_value) avg_rate
FROM dt_tutor_comments u
GROUP by u.id
HAVING AVG(rating_value) BETWEEN 1 AND 2