Get birthday from customers between now and a week MYSQL

Question

Im trying to get the records from the database where the customers birthday is between now and a week. I've tried a lot of options and i'm searching for over an hour but i can't find a working solution. I'm using MYSQL 5.7.19. This is my query

SELECT firstname, lastname, IF(housenumber_addition = "", CONCAT(housenumber,housenumber_addition ), housenumber_addition ) AS adres, sex
FROM customer
WHERE DATE(birthdate) BETWEEN NOW() AND NOW() + INTERVAL 7 DAY

Picture of the data: Picture of the structure:

It's in dutch :( I also need to get the new age from the customer if it's birthday is between now and a week

Hopefully someone could give me a good and working answer

Thanks in advance

Answer 1

Your problem is that the birthdate is not in the current year, so your test cannot be true. You need to convert the birthdate into a value in the current year, which you can do by this:

STR_TO_DATE(CONCAT(YEAR(NOW()), '-', MONTH(birthdate), '-', DAY(birthdate)), '%Y-%m-%d')

So your query becomes:

SELECT firstname, lastname, IF(housenumber_addition = "", CONCAT(housenumber,housenumber_addition ), housenumber_addition ) AS adres, sex
FROM customer
WHERE STR_TO_DATE(CONCAT(YEAR(NOW()), '-', MONTH(birthdate), '-', DAY(birthdate)), '%Y-%m-%d') BETWEEN NOW() AND NOW() + INTERVAL 7 DAY

Update

As @GordonLinoff points out, this doesn't work if the week overlaps a year end and the birthdate is in the beginning of January (eg NOW() = '2018-12-28' and birthdate = '1985-01-02'). To make that case work, it is necessary to also check on the birthdate in YEAR(NOW())+1 ie

SELECT firstname, lastname, IF(housenumber_addition = "", CONCAT(housenumber,housenumber_addition ), housenumber_addition ) AS adres, sex
FROM customer
WHERE STR_TO_DATE(CONCAT(YEAR(NOW()), '-', MONTH(birthdate), '-', DAY(birthdate)), '%Y-%m-%d') BETWEEN NOW() AND NOW() + INTERVAL 7 DAY OR
    STR_TO_DATE(CONCAT(YEAR(NOW())+1, '-', MONTH(birthdate), '-', DAY(birthdate)), '%Y-%m-%d') BETWEEN NOW() AND NOW() + INTERVAL 7 DAY