MySQL calcule la edad
SELECT DATEDIFF(CURRENT_DATE, STR_TO_DATE(t.birthday, '%d-%m-%Y'))/365 AS ageInYears
FROM YOUR_TABLE t
Lively Lyrebird
SELECT DATEDIFF(CURRENT_DATE, STR_TO_DATE(t.birthday, '%d-%m-%Y'))/365 AS ageInYears
FROM YOUR_TABLE t
SELECT YEAR(CURRENT_DATE)-YEAR(t.birthday) AS ageInYears
FROM YOUR_TABLE t
MySQL Compute a Persons Age