LeetCode 197. Rising Temperature

题目描述：

197. Rising Temperature My Submissions QuestionEditorial Solution

Total Accepted: 16455 Total Submissions: 62463 Difficulty: Easy

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 |

+—-+

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select w1.Id from Weather w1, Weather w2
where (To_DAYS(w1.Date) = To_DAYS(w2.Date) + 1) AND w1.Temperature > w2.Temperature;