My LeetCode grinding. Trying to do a problem a day.
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  1. Given a Weather table, write a SQL query to find all dates' Ids with higher temperature compared to its previous (yesterday's) dates.
  2. +---------+------------------+------------------+
  3. | Id(INT) | RecordDate(DATE) | Temperature(INT) |
  4. +---------+------------------+------------------+
  5. | 1 | 2015-01-01 | 10 |
  6. | 2 | 2015-01-02 | 25 |
  7. | 3 | 2015-01-03 | 20 |
  8. | 4 | 2015-01-04 | 30 |
  9. +---------+------------------+------------------+