组，分的总和，

Question

集团

我的表

+----+-------+------+---------+--------+------+ 
| ID | CLASS | NAME | SCHOOL | POINTS | YEAR | 
+----+-------+------+---------+--------+------+ 
| 1 |  5 | S1 | School1 |  5 | 2013 | 
| 2 |  6 | S2 | School1 |  0 | 2013 | 
| 3 |  5 | S3 | School2 |  1 | 2014 | 
| 4 |  6 | S4 | School1 |  3 | 2013 | 
| 5 |  6 | S5 | School2 |  1 | 2014 | 
| 6 |  5 | S6 | School1 |  0 | 2013 | 
| 7 |  6 | S7 | School2 |  3 | 2013 | 
| 8 |  6 | S8 | School1 |  5 | 2013 | 
| 9 |  5 | S9 | School1 |  1 | 2014 | 
| 10 |  5 | S10 | School1 |  0 | 2013 | 
| 11 |  6 | S11 | School2 |  5 | 2014 | 
| 12 |  5 | S12 | School1 |  1 | 2013 | 
+----+-------+------+---------+--------+------+ 

在这里，我想找到每个学校的总点数相对于等级和年度订货的最高点。

这是我的问题，我想显示，5分，6分也在总分内。

<?php 
$sql="SELECT Class, School, SUM(Points) FROM students WHERE Year='2013' 
GROUP BY Class,School ORDER BY SUM(Points)"; 

$result=mysql_query($sql); 
$count=1; 
while ($row = mysql_fetch_array($result)) 
{ 
?> 
    <table> 
    <tr> 
     <td><?php echo $row['School'];?></td> 
     <td><?php echo $row["SUM(Points)"];?></td> 
    </tr> 

     <tr> 
     <td>Class <?php echo $row['Class'];?></td> 
     <td><?php echo $row['Points'];?></td> 
     </tr> 
    </table> 
    <?php 
     } 
    ?> 

所以我最终输出的样子：

| School1 | 14 | 
-------------------- 
    Class 5  6 
    Class 6  8 
-------------------- 

| School2 |  3 | 
    Class 5  0 
    Class 6  3 
+------+------+------+ 

请帮助我。

Answer 1

做它在“两步”：

<?php 
$sql="SELECT School, SUM(Points) FROM students WHERE Year='2013' 
GROUP BY School ORDER BY SUM(Points)"; 

$result=mysql_query($sql); 
$count=1; 
while ($row = mysql_fetch_array($result)) 
{ 
?> 
    <table> 
    <tr> 
     <td><?php echo $row['School'];?></td> 
     <td><?php echo $row["SUM(Points)"];?></td> 
    </tr> 

    <?php 

     $sql2="SELECT Class, SUM(Points) FROM students WHERE Year='2013' and School = '" . $row['School'] . "' 
     GROUP BY Class ORDER BY SUM(Points)"; 
     $result2=mysql_query($sql2); 
     while ($row2 = mysql_fetch_array($result2)) 
     { 

     ?> 
      <tr> 
       <td>Class <?php echo $row2['Class'];?></td> 
       <td><?php echo $row2['SUM(Points)'];?></td> 
      </tr> 
     <?php 
     } 
     ?> 


    </table> 
    <?php 
     } 
    ?>