列的SUM和显示多个查询

Question

我有以下表：MyTable的

和我需要显示如下数据： PRODUCTLINE buyPrice MSRP

既buyPrice和MSRP需要将SUM用于其数据并通过productLine进行索引，因此输出将如下所示：

PRODUCTLINE

飞机
船舶
火车
卡车和船

buyPrice
每PRODUCTLINE buyPrice SUM所有值的

MSRP
每PRODUCTLINE

MSRP SUM所有值

Im us荷兰国际集团下面的查询wothout任何成功：

$result = mysql_query("SELECT SUM(buyPrice) FROM myTable, SELECT SUM(MSRP) FROM myTable, SELECT * FROM myTable"); // selecting data through mysql_query() 

，这里是我的条件

while($row = mysql_fetch_array($result)) 
{ 
// we are running a while loop to print all the rows in a table 
echo "<tr>"; 
echo "<td align='center' width='200'>" . $row['productLine'] . "</td>"; 
echo "</tr>"; 

echo "<tr>"; 
echo "<td align='center' width='200'>" . $row['SUM(buyPrice)'] . "</td>"; 
echo "</tr>"; 
} 

echo "<tr>"; 
echo "<td align='center' width='200'>" . $row['SUM(MSRP)'] . "</td>"; 
echo "</tr>"; 
echo "</table>"; 

林没有得到任何输出任何责任。任何帮助是极大的赞赏。

Answer 1

尝试使用：

$result = mysql_query("SELECT productLine, SUM(buyPrice) AS sum_buy_price, SUM(MSRP) AS sum_msrp FROM myTable group by productLine"); // selecting data through mysql_query() 

，并输出结果：

echo "<table>"; 
while($row = mysql_fetch_array($result)) 
{ 
    // we are running a while loop to print all the rows in a table 
    echo "<tr>"; 
    echo "<td align='center' width='200'>" . $row['productLine'] . "</td>"; 
    echo "<td align='center' width='200'>" . $row['sum_buy_price'] . "</td>"; 
    echo "<td align='center' width='200'>" . $row['sum_msrp'] . "</td>"; 
    echo "</tr>"; 
} 
echo "</table>";