PHP 与MySQL - 基于点击次数和时间的热门链接

Question

目前我正在按总点击次数对热门链接进行排序。但我也有每次访问的时间戳。如何不仅按总点击次数还按时间对链接进行排序，以便仅将最相关的链接显示在顶部？

table link_clicks
-----------------
link_id
link_time

Answer 1

GROUP BY link_id 并在 WHERE 子句中使用日期约束：

SELECT link_id, COUNT(*) AS num_clicks
FROM link_clicks
WHERE link_time >= '2011-05-20'
GROUP BY link_id
ORDER BY num_clicks DESC

Answer 2

ORDER BY total_clicks, link_time DESC;