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merged 2 commits into from
Jun 29, 2023
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Dev sql #1100

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3d22c2f
feat: add sql solution to lc problem: No.1194
yanglbme Jun 29, 2023
06eadd6
feat: add sql solution to lc problem: No.1841
yanglbme Jun 29, 2023
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32 changes: 31 additions & 1 deletion solution/1100-1199/1194.Tournament Winners/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,37 @@ Players 表</code>:
### **SQL**

```sql

# Write your MySQL query statement below
WITH
s AS (
SELECT first_player AS player_id, first_score AS score, group_id
FROM
Matches AS m
JOIN Players AS p ON m.first_player = p.player_id
UNION ALL
SELECT second_player AS player_id, second_score AS score, group_id
FROM
Matches AS m
JOIN Players AS p ON m.second_player = p.player_id
),
t AS (
SELECT group_id, player_id, sum(score) AS scores
FROM s
GROUP BY player_id
),
p AS (
SELECT
group_id,
player_id,
rank() OVER (
PARTITION BY group_id
ORDER BY scores DESC, player_id
) AS rk
FROM t
)
SELECT group_id, player_id
FROM p
WHERE rk = 1;
```

<!-- tabs:end -->
32 changes: 31 additions & 1 deletion solution/1100-1199/1194.Tournament Winners/README_EN.md
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Original file line number Diff line number Diff line change
Expand Up @@ -91,7 +91,37 @@ Matches table:
### **SQL**

```sql

# Write your MySQL query statement below
WITH
s AS (
SELECT first_player AS player_id, first_score AS score, group_id
FROM
Matches AS m
JOIN Players AS p ON m.first_player = p.player_id
UNION ALL
SELECT second_player AS player_id, second_score AS score, group_id
FROM
Matches AS m
JOIN Players AS p ON m.second_player = p.player_id
),
t AS (
SELECT group_id, player_id, sum(score) AS scores
FROM s
GROUP BY player_id
),
p AS (
SELECT
group_id,
player_id,
rank() OVER (
PARTITION BY group_id
ORDER BY scores DESC, player_id
) AS rk
FROM t
)
SELECT group_id, player_id
FROM p
WHERE rk = 1;
```

<!-- tabs:end -->
31 changes: 31 additions & 0 deletions solution/1100-1199/1194.Tournament Winners/Solution.sql
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Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
# Write your MySQL query statement below
WITH
s AS (
SELECT first_player AS player_id, first_score AS score, group_id
FROM
Matches AS m
JOIN Players AS p ON m.first_player = p.player_id
UNION ALL
SELECT second_player AS player_id, second_score AS score, group_id
FROM
Matches AS m
JOIN Players AS p ON m.second_player = p.player_id
),
t AS (
SELECT group_id, player_id, sum(score) AS scores
FROM s
GROUP BY player_id
),
p AS (
SELECT
group_id,
player_id,
rank() OVER (
PARTITION BY group_id
ORDER BY scores DESC, player_id
) AS rk
FROM t
)
SELECT group_id, player_id
FROM p
WHERE rk = 1;
38 changes: 37 additions & 1 deletion solution/1800-1899/1841.League Statistics/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -106,7 +106,43 @@ Dortmund 是积分榜上的第一支球队. Ajax和Arsenal 有同样的分数,
<!-- 这里可写当前语言的特殊实现逻辑 -->

```sql

# Write your MySQL query statement below
WITH
Scores AS (
SELECT
home_team_id AS team_id,
CASE
WHEN home_team_goals > away_team_goals THEN 3
WHEN home_team_goals < away_team_goals THEN 0
ELSE 1
END AS score,
home_team_goals AS goals,
away_team_goals AS away_goals
FROM Matches
UNION ALL
SELECT
away_team_id AS team_id,
CASE
WHEN home_team_goals > away_team_goals THEN 0
WHEN home_team_goals < away_team_goals THEN 3
ELSE 1
END AS score,
away_team_goals AS goals,
home_team_goals AS away_goals
FROM Matches
)
SELECT
team_name,
count(1) AS matches_played,
sum(score) AS points,
sum(goals) AS goal_for,
sum(away_goals) AS goal_against,
(sum(goals) - sum(away_goals)) AS goal_diff
FROM
Scores AS s
JOIN Teams AS t ON s.team_id = t.team_id
GROUP BY s.team_id
ORDER BY points DESC, goal_diff DESC, team_name;
```

<!-- tabs:end -->
38 changes: 37 additions & 1 deletion solution/1800-1899/1841.League Statistics/README_EN.md
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Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,43 @@ Dortmund is the first team in the table. Ajax and Arsenal have the same points,
### **SQL**

```sql

# Write your MySQL query statement below
WITH
Scores AS (
SELECT
home_team_id AS team_id,
CASE
WHEN home_team_goals > away_team_goals THEN 3
WHEN home_team_goals < away_team_goals THEN 0
ELSE 1
END AS score,
home_team_goals AS goals,
away_team_goals AS away_goals
FROM Matches
UNION ALL
SELECT
away_team_id AS team_id,
CASE
WHEN home_team_goals > away_team_goals THEN 0
WHEN home_team_goals < away_team_goals THEN 3
ELSE 1
END AS score,
away_team_goals AS goals,
home_team_goals AS away_goals
FROM Matches
)
SELECT
team_name,
count(1) AS matches_played,
sum(score) AS points,
sum(goals) AS goal_for,
sum(away_goals) AS goal_against,
(sum(goals) - sum(away_goals)) AS goal_diff
FROM
Scores AS s
JOIN Teams AS t ON s.team_id = t.team_id
GROUP BY s.team_id
ORDER BY points DESC, goal_diff DESC, team_name;
```

<!-- tabs:end -->
37 changes: 37 additions & 0 deletions solution/1800-1899/1841.League Statistics/Solution.sql
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,37 @@
# Write your MySQL query statement below
WITH
Scores AS (
SELECT
home_team_id AS team_id,
CASE
WHEN home_team_goals > away_team_goals THEN 3
WHEN home_team_goals < away_team_goals THEN 0
ELSE 1
END AS score,
home_team_goals AS goals,
away_team_goals AS away_goals
FROM Matches
UNION ALL
SELECT
away_team_id AS team_id,
CASE
WHEN home_team_goals > away_team_goals THEN 0
WHEN home_team_goals < away_team_goals THEN 3
ELSE 1
END AS score,
away_team_goals AS goals,
home_team_goals AS away_goals
FROM Matches
)
SELECT
team_name,
count(1) AS matches_played,
sum(score) AS points,
sum(goals) AS goal_for,
sum(away_goals) AS goal_against,
(sum(goals) - sum(away_goals)) AS goal_diff
FROM
Scores AS s
JOIN Teams AS t ON s.team_id = t.team_id
GROUP BY s.team_id
ORDER BY points DESC, goal_diff DESC, team_name;