上升的温度
https://leetcode-cn.com/problems/rising-temperature/
联表查询
注意联表的条件和取值
#?Write?your?MySQL?query?statement?below
select?w1.Id
from?Weather?as?w1,?Weather?as?w2
where?from_unixtime(unix_timestamp(w1.RecordDate)?-?86400,?‘%Y-%m-%d‘)?=?w2.RecordDate?
and?w1.Temperature?>?w2.Temperature
原文：https://www.cnblogs.com/wudanyang/p/13174051.html