MySQL week calculation between two dates

Question

I\'ve been stuck with this issue for days, which is something like calculating the numbers of weeks that lies between two days, for example:

Select @Days = (         


        

Answer 1

DATEDIFF(@date1, @date2)/7

That returns a fraction which I'm guessing you'll want to round in some way with CEIL(), ROUND() or FLOOR()

My test example with two defined dates:

SELECT FLOOR(DATEDIFF(DATE(20090215), DATE(20090101))/7);

Answer 2

you could also try this as it separates weeks and days.

    SET @day1=DATE('2015-02-02');
    SET @day2=DATE('2015-02-10');
    SELECT CONCAT(SUBSTRING_INDEX(ABS(DATEDIFF(@day1,@day2)/7),'.',1),'Weeks ',
    SUBSTRING_INDEX(ABS(DATEDIFF(@day1,@day2)),'.',1)-SUBSTRING_INDEX(ABS(DATEDIFF(@day1,@day2))/7,'.',1)*7,'Days'
    )AS diff