MySQL 日期算术
例子
NOW() + INTERVAL 1 DAY -- This time tomorrow CURDATE() - INTERVAL 4 DAY -- Midnight 4 mornings ago
显示3至10小时前（180至600分钟前）询问的mysql问题存储：
SELECT qId,askDate,minuteDiff
FROM
( SELECT qId,askDate,
TIMESTAMPDIFF(MINUTE,askDate,now()) as minuteDiff
FROM questions_mysql
) xDerived
WHERE minuteDiff BETWEEN 180 AND 600
ORDER BY qId DESC
LIMIT 50;
+----------+---------------------+------------+
| qId | askDate | minuteDiff |
+----------+---------------------+------------+
| 38546828 | 2016-07-23 22:06:50 | 182 |
| 38546733 | 2016-07-23 21:53:26 | 195 |
| 38546707 | 2016-07-23 21:48:46 | 200 |
| 38546687 | 2016-07-23 21:45:26 | 203 |
| ... | | |
+----------+---------------------+------------+的MySQL手册页TIMESTAMPDIFF()。
当心不要CURDATE()+1在MySQL中使用诸如日期算术之类的表达式。它们不会返回您期望的结果，特别是如果您习惯了Oracle数据库产品。使用CURDATE()+INTERVAL1DAY代替。