SUM（数量）00:00 - 23.59昨天

Question

基于此，我如何设定整个00:00 - 23.59（昨天）的间隔

int

Answer 1

试一试 -

SELECT SUM(quantity)
    FROM downloads
WHERE
  date>=CONCAT(SUBDATE(CURDATE(), INTERVAL 1 DAY),' 00:00:00')
  AND date<= CONCAT(SUBDATE(CURDATE(), INTERVAL 1 DAY),' 23:59:59')

或者您可以使用 -

SELECT SUM(quantity)
    FROM downloads
WHERE
  date>=SUBDATE(CURDATE(), INTERVAL 1 DAY)
  AND date< CURDATE();

Answer 2

您可以尝试这样：

SELECT SUM(quantity)
    FROM downloads
WHERE
  date = DATE_sub(date,INTERVAL 1 DAY);

了解更多信息：https://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_date-add