PHP和MySQL之間的查詢日期時間戳

Question

我正在嘗試查詢記錄。 日期存儲為日期時間戳，我的查詢如下所示：

SELECT    count(c.id) as totalOrders
FROM      Cart c
WHERE     c.artist_id = 1
AND       c.paid = 1
AND       date_format(c.created, 'Y-m-d') between '2016-09-06' AND '2016-09-07'

我的約會時間戳是這樣的：2016-09-07 21:04:46

由於某種原因，它不返回任何記錄，為什么？

Answer 1

更改以下行：

AND date_format(c.created, 'Y-m-d') between '2016-09-06' AND '2016-09-07'

至

AND date(created) between '2016-09-06' AND '2016-09-07'

date（）函數將從datetime返回日期，並將檢查給定范圍。

Answer 2

使用date（）函數代替date_format（）

SELECT    count(c.id) as totalOrders
    FROM      Cart c
    WHERE     c.artist_id = 1
    AND       c.paid = 1
    AND       date(c.created) between '2016-09-06' AND '2016-09-07'