Leetcode Database:rank Scores

Write a SQL query to rank scores. If there is a tie between the scores, both should has the same ranking. Note that after a tie, the next ranking number should is the next consecutive integer value. In the other words, there should is no "holes" between ranks.

+----+-------+| Id | Score |+----+-------+| 1  | 3.50  | | 2  | 3.65  | | 3  | 4.00  | | 4  | 3.85  | | 5  | 4.00  | | 6  | 3.65  |+ ----+-------+

For example, given the above Scores table, your query should generate the following report (order by highest score):

+-------+------+| Score | Rank |+-------+------+| 4.00  | 1    | | 4.00 |  1    | | 3.85  | 2    | | 3.65  | 3    | | 3.65  | 3    | | 3.50  | 4    |+-------+------+

# Write your MySQL query statement Belowselect score, Rank from (    select Score,     @rank: = @rank + if (@prevSc =score, 0, 1) as Rank,    @prevSc: = score from    (select @prevSc: = null) x, (select @rank: = 0) y,         (SELECT * from Scores ORDER BY score Desc) z) A;

　　

Leetcode Database:rank Scores