[英]Using MySQL how do I select data between two dates if the dates are in separate columns
在我的数据库中,我有一列有入住日期和一列有退房日期。 我需要选择入住日期<= 7/30/2017和退房日期> = 7/30/2017的每一行。
这是我现在拥有的代码:
SELECT *
FROM `v_reservation_records`
WHERE cast(checkin as date) <= '7/30/2017'
AND cast(checkout as date) >= '7/30/2017'
这是来自数据库的示例日期:
2018-09-18
当我运行此查询时,没有得到任何结果,但我知道我的入住日期等于7/30/2017。 我想念什么? 还是有更简单的方法来实现我的目标?
假设您要投放有效的日期值
您还应该正确转换文字日期
SELECT *
FROM `v_reservation_records`
WHERE cast(checkin as date) <= str_to_date('7/30/2017' , '%d/%m/%Y')
AND cast(checkout as date) >= str_to_date('7/30/2017' , '%d/%m/%Y')
您还可以在
SELECT *
FROM `v_reservation_records`
WHERE str_to_date('7/30/2017','%d/%m/%Y')
between cast(checkin as date) AND cast(checkout as date)
这样尝试
SELECT *
FROM `v_reservation_records`
WHERE DATE_FORMAT(checkin, '%m/%d/%Y') between '7/30/2017'
AND '7/30/2017'
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