减去月和日的mysql

Question

我需要用mysql减去1个月和4天，我看到命令DATE_ADD (NOW (), - 1 MONTH)完美的1个月但是1个月和4天，使用31天对于一些带来的每个月都是无效的30,29,28。我不能加31 + 4,30 + 4等

Answer 1

使用DATE_SUB ^[docs]如：

DATE_SUB((DATE_SUB(curdate(), INTERVAL 1 MONTH)), INTERVAL 4 DAY)

Answer 2

SELECT DATE_ADD(DATE_ADD(NOW(),INTERVAL -1 MONTH), INTERVAL -4 DAY)

Answer 3

SELECT CURRENT_TIMESTAMP + INTERVAL - 1 MONTH + INTERVAL - 4 DAY;
要么
SELECT CURRENT_DATE + INTERVAL - 1 MONTH + INTERVAL - 4 DAY;

Answer 4

Keep it simple:

SELECT CURDATE() - INTERVAL 1 MONTH - INTERVAL 4 DAY;

or

SELECT '2014-03-27' - INTERVAL 1 MONTH - INTERVAL 4 DAY;

or if you like to preserve the current time:

SELECT NOW() - INTERVAL 1 MONTH - INTERVAL 4 DAY;

(Tested on MySQL 5.1.73 and newer)