Is it possible, in a query, to determine age from dates contained inside a group_concat? Perhaps combining the following?
group_concat(children.age)
TIMESTAMPDIFF(YEAR, age, CURDATE())
Or do I need to handle in PHP?
The following code works on my table where id is an INT and age is a DATE:
SELECT id, group_concat(TIMESTAMPDIFF(YEAR,age, CURDATE())) FROM test4
group by id
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