mySQL SELECT upcoming birthdays

Question

I'm trying to write a query to select users of a database whose birthdays are in the next 7 days.

I've done a lot of research but I can't come up with a working solution.

The birthday field is stored as a varchar eg '04/16/93' is there any way to work with this?

This is what I have so far:

SELECT * 
FROM   `PERSONS` 
WHERE  `BIRTHDAY` > DATEADD(DAY, -7, GETDATE()) 

I should have made it more clear, I'm trying to find birthdays not dates of birth. So i'm just looking for days and months not years.

Answer 1

To get all birthdays in next 7 days, add the year difference between the date of birth and today to the date of birth and then find if it falls within next seven days.

SELECT * 
FROM  persons 
WHERE  DATE_ADD(birthday, 
                INTERVAL YEAR(CURDATE())-YEAR(birthday)
                         + IF(DAYOFYEAR(CURDATE()) > DAYOFYEAR(birthday),1,0)
                YEAR)  
            BETWEEN CURDATE() AND DATE_ADD(CURDATE(), INTERVAL 7 DAY);

If you want to exclude today's birthdays just change > to >=

SELECT * 
FROM  persons 
WHERE  DATE_ADD(birthday, 
                INTERVAL YEAR(CURDATE())-YEAR(birthday)
                         + IF(DAYOFYEAR(CURDATE()) >= DAYOFYEAR(birthday),1,0)
                YEAR)  
            BETWEEN CURDATE() AND DATE_ADD(CURDATE(), INTERVAL 7 DAY);

-- Same as above query with another way to exclude today's birthdays 
SELECT * 
FROM  persons 
WHERE  DATE_ADD(birthday, 
                INTERVAL YEAR(CURDATE())-YEAR(birthday)
                         + IF(DAYOFYEAR(CURDATE()) > DAYOFYEAR(birthday),1,0)
                YEAR) 
            BETWEEN CURDATE() AND DATE_ADD(CURDATE(), INTERVAL 7 DAY)
     AND DATE_ADD(birthday, INTERVAL YEAR(CURDATE())-YEAR(birthday) YEAR) <> CURDATE();


-- Same as above query with another way to exclude today's birthdays 
SELECT * 
FROM  persons 
WHERE  DATE_ADD(birthday, 
                INTERVAL YEAR(CURDATE())-YEAR(birthday)
                         + IF(DAYOFYEAR(CURDATE()) > DAYOFYEAR(birthday),1,0)
                YEAR) 
            BETWEEN CURDATE() AND DATE_ADD(CURDATE(), INTERVAL 7 DAY)
     AND (MONTH(birthday) <> MONTH(CURDATE()) OR DAY(birthday) <> DAY(CURDATE()));

Here is a DEMO of all queries

Answer 2

Its very easy and simple. No need to use any if conditions or anything else you just need to use DATE_FORMAT() function of mysql.

Here is my sql query that is

SELECT id,email ,dob FROM `users` where DATE_FORMAT(dob, '%m-%d') >= DATE_FORMAT(NOW(), '%m-%d') and DATE_FORMAT(dob, '%m-%d') <= DATE_FORMAT((NOW() + INTERVAL +7 DAY), '%m-%d')

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