Using between mysql function ignoring year

问题

Ok, I have the following Users table:

id |  name  |  birthday 

1  |  nam1  |  1980-06-29  
2  |  nam2  |  1997-07-08  
3  |  nam3  |  1997-07-20  

Assuming that today is 2012-06-29

How can I get the users who will celebrate your birthdays in the next 15 days? I have tried with this:

select * from users where birthday between '%-06-29' and '%-07-14';

but looks like is not a valid query.

回答1:

I think the safest way is to compare their age in 15 days with their age today:

SELECT *
FROM   Users
WHERE  TIMESTAMPDIFF(YEAR, birthday, CURRENT_DATE + INTERVAL 15 DAY)
     > TIMESTAMPDIFF(YEAR, birthday, CURRENT_DATE)

See it on sqlfiddle.

回答2:

you should try operating on a substring of "birthday" so you can "cut" the year out of the field

来源：https://stackoverflow.com/questions/11265610/using-between-mysql-function-ignoring-year