Question

道歉，如果我没有详细解释我的情况，因为我不是母语人士。我相信这对大多数人来说相当简单，但我很挣扎。我正在使用php / mysql。

假设我有一个数据库如下：

id   game   scorer
1     1      molly
2     1      sarah
3     1      angela
4     1      molly
5     2      jane
6     2      molly
7     2      sarah

我如何编写一个查询来展示每场比赛的得分手数，以及他们在赛季结束前得分的目标数量直到该特定目标？

Example: 
Game 1: Molly (1st), Sarah (1st), Angela (1st), Molly (2nd)
Game 2: Jane (1st), Molly (3rd), Sarah (2nd)

Answer 1

CREATE TABLE goals
(goal_id INT NOT NULL AUTO_INCREMENT PRIMARY KEY
,game INT NOT NULL
,scorer VARCHAR(12) NOT NULL
);

INSERT INTO goals VALUES
(1,1,'molly'),
(2,1,'sarah'),
(3,1,'angela'),
(4,1,'molly'),
(5,2,'jane'),
(6,2,'molly'),
(7,2,'sarah');


SELECT game, GROUP_CONCAT(CONCAT(scorer,'(',rank,')')) scorers FROM 
(
SELECT x.game
     , x.scorer
     , COUNT(*) rank 
  FROM goals x 
  JOIN goals y 
    ON y.scorer = x.scorer 
   AND y.goal_id <= x.goal_id 
 GROUP 
    BY x.game,x.goal_id,x.scorer
)n
GROUP BY game;

+------+--------------------------------------+
| game | scorers                              |
+------+--------------------------------------+
|    1 | molly(1),sarah(1),angela(1),molly(2) |
|    2 | jane(1),molly(3),sarah(2)            |
+------+--------------------------------------+

子查询本身将提供替代显示

Answer 2

试试这个，

<?php
$query="SELECT * FROM `goals`";
$result =   mysqli_query($query);
$goals_scored   =   array();
$scorer_goals   =   array();
while($row=mysqli_fetch_array($result)){    
    $score  =   array('scorer'=>$row['scorer']);    
    if(isset($scorer_goals[$row['scorer']])){       
        $scorer_goals[$row['scorer']]++;
        $score['goal_number']=$scorer_goals[$row['scorer']];
        array_push($goals_scored[$row['game']], $score);
    }
    else{       
        $scorer_goals[$row['scorer']]   =   1;
        $score['goal_number']=$scorer_goals[$row['scorer']];
        $goals_scored[$row['game']] =   array($score);
    }   
}
echo '<table>';
foreach($goals_scored as $key=>$goals){ 
    echo '<tr><td>Game '.$key.'</td>';
    foreach($goals as $goal){
        echo '<td>'.$goal['scorer'].'( '.$goal['goal_number'].' )</td>';
    }
    echo '</tr>';
}
echo '</table>';
?>

MySQL计数值直到特定行

2 个答案: