Question

我有这个独特的错误

TABLE : tbl
id | title | iscancel | sold_dt

id: UID
Title : varchar
iscancel : 0/1
sold_dt : timestamp


select * from tbl where iscancel = 0 and DATE_FORMAT(sold_dt,"%m/%d/%Y") BETWEEN "06/01/2015" AND "03/01/2016" GROUP BY day(sold_dt) order by (sold_dt) asc

（注意年份不同）

返回0条记录

但如果我这样做

select * from tbl where iscancel = 0 and DATE_FORMAT(sold_dt,"%m/%d/%Y") BETWEEN "06/01/2015" AND "12/01/2015" GROUP BY day(sold_dt) order by (sold_dt) asc

或

select * from tbl where iscancel = 0 and DATE_FORMAT(sold_dt,"%m/%d/%Y") BETWEEN "01/01/2016" AND "03/01/2016" GROUP BY day(sold_dt) order by (sold_dt) asc

（注意年份相同）

- 我会得到一些记录

*使用DATE_FORMAT因为我的日历正在给我MM/DD/YYYY（我无法更改，因为它可能会影响其他区域）

我做错了什么？

Answer 1

不要将存储的值转换为其他格式，而是尝试将参数本身更改为正确的格式。如果您无法在您的网站上进行此操作，您也可以在查询中执行此操作

sold_dt BETWEEN
STR_TO_DATE('06/01/2015', '%m/%d/%Y') AND STR_TO_DATE('03/01/2016', '%m/%d/%Y')

Answer 2

尝试将静态日期传递到DATE_FORMAT（）函数

select * from tbl where iscancel = 0 and DATE_FORMAT(sold_dt,"%m/%d/%Y") BETWEEN DATE_FORMAT("06/01/2015","%m/%d/%Y") AND DATE_FORMAT("03/01/2016","%m/%d/%Y") GROUP BY day(sold_dt) order by (sold_dt) asc

如果年份不同，则无法获得“中间”记录

2 个答案: