Question

我有一个看起来像的数据库：

id|text|rating|TimeOfRating

用于描述：如果用户对5分中的4分评价，则评分中加4分，并添加TimeOfRating 1。

如何用PHP过滤出评分最高的10条评论？

干杯！

Answer 1

这会给你平均评分：

SELECT
  id,
  text,
  (rating/TimeOfRating) AS score
FROM tablename
ORDER BY score DESC
LIMIT 10

Answer 2

根据您提供的信息，这符合您的要求。

SELECT id, text, rating, TimeOfRating
FROM
    (SELECT id, text
    CASE
            WHEN rating = 4 THEN rating + 5
            ELSE rating
        END AS rating,
    CASE
            WHEN rating = 4 THEN TimeOfRating + 1
            ELSE TimeOfRating
        END AS TimeOfRating
    FROM pickles) a
ORDER BY rating DESC
LIMIT 10

什么类型的列是TimeOfRating？

从数据库中获取最高评论

2 个答案: