180. 连续出现的数字

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题目链接：180. 连续出现的数字

代码如下：

# Write your MySQL query statement below
select distinct l1.num as ConsecutiveNums
fromLogs as l1,Logs as l2,Logs as l3
wherel1.id=l2.id-1and l2.id=l3.id-1and l1.num=l2.numand l2.num=l3.num