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# 197. Rising Temperature

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 | +----+

## Solution <a href="#solution" id="solution"></a>

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