LeetCode Rising Temperature

标签：leetcode   database   sql   

Given a Weather table, write a SQL query to find all dates‘ Ids with higher temperature compared to its previous (yesterday‘s) dates.

+---------+------------+------------------+
| Id(INT) | Date(DATE) | Temperature(INT) |
+---------+------------+------------------+
|       1 | 2015-01-01 |               10 |
|       2 | 2015-01-02 |               25 |
|       3 | 2015-01-03 |               20 |
|       4 | 2015-01-04 |               30 |
+---------+------------+------------------+

+----+
| Id |
+----+
|  2 |
|  4 |
+----+

select b.id as Id from Weather a, Weather b where to_days(a.date) = to_days(b.date) - 1 and a.temperature < b.temperature

LeetCode Rising Temperature

标签：leetcode   database   sql   

原文地址：http://blog.csdn.net/u012925008/article/details/45008331