Leetcode Problem 1212. Team Scores in Football Tournament

1212. Team Scores in Football Tournament

Leetcode Solutions

Calculating Football Team Scores Using SQL Joins and Conditional Aggregation

Perform a LEFT JOIN on the Teams table with the Matches table, joining on the condition that the team_id matches either the host_team or guest_team.
Use a CASE statement within the SUM function to calculate the points for each team based on the match results.
Group the results by team_id and team_name to get the total points for each team.
Order the final result by num_points in descending order and by team_id in ascending order to break ties.
Select the team_id, team_name, and the calculated num_points for each team.


erDiagram
    Teams {
        int team_id PK
        varchar team_name
    }

    Matches {
        int match_id PK
        int host_team FK
        int guest_team FK
        int host_goals
        int guest_goals
    }

    Teams ||--o{ Matches : plays

Alternative Approach Using UNION ALL and Subquery

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Leetcode Problem 1212. Team Scores in Football Tournament

Leetcode Solutions

Calculating Football Team Scores Using SQL Joins and Conditional Aggregation

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Alternative Approach Using UNION ALL and Subquery

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