78 lines
2.5 KiB
Markdown
78 lines
2.5 KiB
Markdown
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Table: `Users`
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+---------------+---------+
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| Column Name | Type |
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+---------------+---------+
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| id | int |
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| name | varchar |
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+---------------+---------+
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id is the primary key for this table.
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name is the name of the user.
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Table: `Rides`
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+---------------+---------+
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| Column Name | Type |
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+---------------+---------+
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| id | int |
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| user_id | int |
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| distance | int |
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+---------------+---------+
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id is the primary key for this table.
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user_id is the id of the user who traveled the distance "distance".
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Write an SQL query to report the distance traveled by each user.
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Return the result table ordered by `travelled_distance` in **descending order**, if two or more users traveled the same distance, order them by their `name` in **ascending order**.
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The query result format is in the following example.
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**Example 1:**
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Input:
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Users table:
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+------+-----------+
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| id | name |
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+------+-----------+
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| 1 | Alice |
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| 2 | Bob |
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| 3 | Alex |
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| 4 | Donald |
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| 7 | Lee |
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| 13 | Jonathan |
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| 19 | Elvis |
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+------+-----------+
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Rides table:
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+------+----------+----------+
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| id | user_id | distance |
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+------+----------+----------+
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| 1 | 1 | 120 |
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| 2 | 2 | 317 |
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| 3 | 3 | 222 |
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| 4 | 7 | 100 |
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| 5 | 13 | 312 |
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| 6 | 19 | 50 |
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| 7 | 7 | 120 |
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| 8 | 19 | 400 |
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| 9 | 7 | 230 |
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+------+----------+----------+
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Output:
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+----------+--------------------+
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| name | travelled_distance |
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+----------+--------------------+
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| Elvis | 450 |
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| Lee | 450 |
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| Bob | 317 |
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| Jonathan | 312 |
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| Alex | 222 |
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| Alice | 120 |
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| Donald | 0 |
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+----------+--------------------+
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Explanation:
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Elvis and Lee traveled 450 miles, Elvis is the top traveler as his name is alphabetically smaller than Lee.
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Bob, Jonathan, Alex, and Alice have only one ride and we just order them by the total distances of the ride.
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Donald did not have any rides, the distance traveled by him is 0.
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https://leetcode.com/problems/top-travellers/
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