Question

I have a table of users with a field birthday(DATE).

Currently, I select users who’s birthdays is within 7 days past or ahead of the current date like this:

SELECT * FROM users
WHERE 
    DATE_FORMAT(birthday, '1980-%m-%d')
        BETWEEN
        DATE_FORMAT(DATE_SUB(CURRENT_DATE(), INTERVAL 7 day), '1980-%m-%d')
        AND
        DATE_FORMAT(DATE_ADD(CURRENT_DATE(), INTERVAL 7 day), '1980-%m-%d')

As you can see, this query is not the most streamlined, considering the comparison via the fabricated 1980- date formatting. Also, I believe this will fail to properly select birthday users around the last and first week of the year.

While I am seeing the problems with this, I struggle to find how to approach this. What could I do to improve this query?

Answer 1

Try this filter –

WHERE
  birthday + INTERVAL EXTRACT(YEAR FROM NOW()) - EXTRACT(YEAR FROM birthday) YEAR
  BETWEEN CURRENT_DATE() - INTERVAL 7 DAY AND CURRENT_DATE() + INTERVAL 7 DAY