表: Weather
+---------------+---------+ | Column Name | Type | +---------------+---------+ | id | int | | recordDate | date | | temperature | int | +---------------+---------+ 在 SQL 中,id 是该表的主键。 该表包含特定日期的温度信息
找出与之前(昨天的)日期相比温度更高的所有日期的 id
。
返回结果 无顺序要求 。
结果格式如下例子所示。
示例 1:
输入:
Weather 表:
+----+------------+-------------+
| id | recordDate | Temperature |
+----+------------+-------------+
| 1 | 2015-01-01 | 10 |
| 2 | 2015-01-02 | 25 |
| 3 | 2015-01-03 | 20 |
| 4 | 2015-01-04 | 30 |
+----+------------+-------------+
输出:
+----+
| id |
+----+
| 2 |
| 4 |
+----+
解释:
2015-01-02 的温度比前一天高(10 -> 25)
2015-01-04 的温度比前一天高(20 -> 30)
# Write your MySQL query statement below
SELECT w1.id
FROM
Weather AS w1
JOIN Weather AS w2
ON datediff(w1.recordDate, w2.recordDate) = 1
AND w1.temperature > w2.temperature;
SELECT
w2.id AS Id
FROM
weather AS w1
JOIN weather AS w2 ON DATE_ADD( w1.recordDate, INTERVAL 1 DAY) = w2.recordDate
WHERE
w1.temperature < w2.temperature