[LeetCode][SQL]Rising Temperature

原文链接： http://www.cnblogs.com/Liok3187/p/4508038.html

Rising Temperature

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 |
+---------+------------+------------------+

For example, return the following Ids for the above Weather table:

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

https://leetcode.com/problems/rising-temperature/

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之前交了几次都没加TO_DAYS函数，我错了，我不该懒得装MySQL。

select A.Id from Weather A where A.Temperature > (select B.Temperature from Weather B where TO_DAYS(A.Date) - 1 = TO_DAYS(B.Date))

 

转载于:https://www.cnblogs.com/Liok3187/p/4508038.html