refactor 574

Author: fishercoder1534

Diff for: database/_574.sql

@@ -1,37 +1,2 @@
---574. Winning Candidate
---Table: Candidate
---
---+-----+---------+
---| id  | Name    |
---+-----+---------+
---| 1   | A       |
---| 2   | B       |
---| 3   | C       |
---| 4   | D       |
---| 5   | E       |
---+-----+---------+
---Table: Vote
---
---+-----+--------------+
---| id  | CandidateId  |
---+-----+--------------+
---| 1   |     2        |
---| 2   |     4        |
---| 3   |     3        |
---| 4   |     2        |
---| 5   |     5        |
---+-----+--------------+
---id is the auto-increment primary key,
---CandidateId is the id appeared in Candidate table.
---Write a sql to find the name of the winning candidate, the above example will return the winner B.
---
---+------+
---| Name |
---+------+
---| B    |
---+------+
---Notes:
---You may assume there is no tie, in other words there will be at most one winning candidate.
-
 select Name from Candidate as Name where id =
 (select CandidateId from Vote group by CandidateId order by count(CandidateId) desc limit 1);