Source

• leetcode: 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 |
+----+

MySQL

select w1.Id
from Weather w1, Weather w2
where w1.Temperature>w2.Temperature and TO_DAYS(w1.Date)=TO_DAYS(w2.Date)+1