如何在MySQL中的两个日期之间获取特定日期

Question

In my MySQL database there is a dateofjoin (int) field in the user table. dateofjoin is inserted like following format:

$dateofjoin=mktime(0,0,0,02,22,2015);

Now I want list of dates that lie between two dates by select query. where two dates are automatically change in mysql query. I have written like this

SELECT *
    FROM user
    WHERE
        (MONTH(STR_TO_DATE(dateofjoin, '%m/%d/%Y')) = MONTH( CURDATE() + INTERVAL 15 DAY)
        AND DAY(STR_TO_DATE(dateofjoin,'%m/%d/%Y')) = DAY(CURDATE() + INTERVAL 15 DAY))

Answer 1

Assuming dateofjoin is date or datetime,

SELECT * FROM user
WHERE DATE(dateofjoin) = CURDATE()+INTERVAL 15 days

or something like that. (You haven't specified how you are getting your 2 boundary dates, so I'm just using your 30 days from now.)

However, the fact that you are using STR_TO_DATE() on dateofjoin makes me think maybe you have it stored as a varchar or something? (Why?!)