Question

我有下表：

Year, Name, Revenue, Qty

我想要一个

的结果表

名称，2012财年收入，2012财年，2013财年，2013财年

如何在Sql for MySql中做？

由于

Answer 1

MySQL没有PIVOT函数，但您可以使用带有CASE表达式的聚合函数来获取结果：

select name,
  sum(case when year = 2012 then revenue else 0 end) revenue2012,
  sum(case when year = 2012 then qty else 0 end) qty2012,
  sum(case when year = 2013 then revenue else 0 end) revenue2013,
  sum(case when year = 2013 then qty else 0 end) qty2013
from yourtable
group by name

Answer 2

如果你正在使用php，你可以随意显示它：

$table=mysqli_query($con,"
SELECT *
FROM table
");

echo "<table>
<tr>
<th>Name</th>
<th>Revenue2012</th>
<th>Qty2012</th>
<th>Revenue2013</th>
<th>Qty2013</th>
</tr>";

while($row = mysqli_fetch_array($table))
  {
  echo "<tr>";
  echo "<td>". $row['Name'] . "</td>";
  echo "<td>". $row['Revenue'] . $row['Year'] . "</td>";
  echo "<td>". $row['Qty '] . "</td>";
  echo "<td>". $row['Revenue'] . $row['Year'] . "</td>";
  echo "<td>". $row['Qty '] . "</td>";
  echo "</tr>";
  }
echo "</table>";

或任何适合您需求的东西。

如何在MySql中转动查询

2 个答案: