SQL：从我的SQL查询的日期值减去1天

Question

我有这个问题：

SELECT * FROM booking WHERE '$year/$month/$day' BETWEEN arrivalDate AND departureDate

其中arrivalDate和departureDate是我的表格列中的日期值。

如何在出发前一天检查日期？

IE：departureDate - 1天

Answer 1

你几乎就在那里，有 - INTERVAL 1 DAY ：

SELECT * FROM booking WHERE '$year/$month/$day' BETWEEN arrivalDate AND departureDate - INTERVAL 1 DAY

Relevant sqlFiddle here

另见：

• ADDDATE() function in the official MySQL documentation