sql - MySQL query that gets all rows UNTIL the SUM(column) is bigger than X -

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i have following data

user_id   days   date 88        2      2013-08-25 88        4      2013-08-23 88        18     2013-08-5 88        1      2013-08-4 88        2      2013-08-2 73        11     2013-08-2 299       4      2013-08-2 12        983    2013-08-2

i'm trying recent rows (order date desc) specific user_id , until sum of days column bigger x. example in case if x=7 3 first rows sum(days)=24.

try this. here use local variable count sums in subquery.

select     user_id,     days,     date     (     select         user_id,         days,         date,         @sum_days := @sum_days + days sum_days             mytable     order         date desc     ) t     cross join (select @sum_days := 0) const -- resetting @sum_days var.     sum_days < x -- fill number in x here.

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