这将为您提供所需的结果：

select t1.id, t1.row_type,t1.row_score, SUM(t2.row_score) as sum
from table t1
inner join table t2 
on t1.id >= t2.id
group by t1.id, t1.row_type,t1.row_score
having SUM(t2.row_score)<=4
order by t1.id

谢谢，
罗汉霍达卡

此查询应该满足您的要求。它使用一个变量来保存一个累积分数，然后在 HAVING 子句来限制返回的行：

SELECT t1.*, @cum_score := @cum_score + row_score AS cum_score
FROM table1 t1
JOIN (SELECT @cum_score := 0) c
HAVING cum_score <= 4
ORDER BY cum_score

输出：

id  row_type    row_score   cum_score
1   a           1           1
2   a           1           2
3   b           2           4

sqlfiddle演示