编写一个 SQL 查询,查找所有至少连续出现三次的数字。 +----+-----+ | Id | Num | +----+-----+ | 1 | 1 | | 2 | 1 | | 3 | 1 | | 4 | 2 | | 5 | 1 | | 6 | 2 | | 7 | 2 | +----+-----+ 例如,给定上面的 Logs 表, 1 是唯一连续出现至少三次的数字。 +-----------------+ | ConsecutiveNums | +-----------------+ | 1 | +-----------------+ 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/consecutive-numbers 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。 # Write your MySQL query statement below、 select distinct(l1.num) as ConsecutiveNums from logs l1 left join logs l2 on l1.num = l2.num left join logs l3 on l2.num = l3.num where l1.id = l2.id+1 and l2.id = l3.id+1 来源: