获取过去48小时内的每小时计数结果 - MySql

Question

我需要一个查询，它会在过去48小时内每小时返回一次计数。 到现在为止我试过了：

SELECT count(*), date_format(created, '%H:%i - %d/%m/%y') as datecreated
FROM mimesi_indexer.served_clips
where created > NOW() - INTERVAL 24 HOUR
group by floor(hour(created))
order by created ASC

和

SELECT count(*), date_format(created, '%H:%i - %d/%m/%y') as datecreated
FROM mimesi_indexer.served_clips
where created > NOW() - INTERVAL 48 HOUR
group by floor(hour(created))
order by created ASC

但这些都没有给出想要的结果。 你对我怎么做这个有什么想法吗？ 感谢

Answer 1

如果你想要每个小时，不要这样：

SELECT count(*), date_format(created, '%H - %d/%m/%y') as datecreated
FROM mimesi_indexer.served_clips
where created > NOW() - INTERVAL 24 HOUR
group by date_format(created, '%H - %d/%m/%y')
order by min(created) ASC;

也就是说，您需要包含日期和小时 - 并从datecreated中删除分钟。