Můžete použít UNION ALL za to
select 'one' as label, curdate() as val
UNION ALL
select 'two' as label, date_sub(curdate(), interval 15 day) as val
UNION ALL
select 'three' as label, date_sub(curdate(), interval 30 day) as val
UNION ALL
select 'four' as label, date_sub(curdate(), interval 45 day) as val
UNION ALL
select 'five' as label, date_sub(curdate(), interval 60 day) as val
UNION ALL
select 'six' as label, date_sub(curdate(), interval 75 day) as val
UNION ALL
select 'seven' as label, date_sub(curdate(), interval 90 day) as val