php – 每月总计月份返回NULL,仅输出运行总计

我使用以下内容尝试以如下格式输出我的月度总计：

 January
 Quoted Total : £678
 Parts Total : £432
 Profit Total : £244

 February
 Quoted Total : £650
 Parts Total : £345
 Profit Total : £123

等等……….

    // Work Complete Totals
    $query = $db->query("SELECT SUM(pricequoted) AS pricequotedtotal,SUM(partprice) AS partpricetotal,SUM(profit) profittotal,DATE_FORMAT('%Y-%m',completeddate) AS month 
                         FROM `jobdetails` 
                         WHERE jobstatus='complete'
                         GROUP BY DATE_FORMAT('%Y-%m',completeddate)");


    echo '
etotal,'');
        $profit      = number_format($result->profittotal,'');

        echo '

我得到的问题是它只输出运行总计,所以我在页面底部的ONCE得到以下内容,但仅此而已：

Work Complete Totals
Quoted Total : £1460.00

Parts Total : £541.43

Profit Total : £918.57

如果我在@R_404_6278@myadmin中运行上面的查询,我得到结果：

pricequotedtotal    partpricetotal  profittotal        month
      1460              541.43      918.5699999999998   NULL

我的表格布局如下：

id  customerID  name    facebookuserurl tel email   address itemforrepair   repairdetails   otherdetails    pricequoted partprice   profit  datepartordered jobstatus   dateofcompletion    datecreated itemnumber

以下是一个示例行：

49  37ac4   Ellen Frost https://www.facebook.com/ellen.mccormick.18             galaxy S3 (Fullsize) Blue   broken front glass and also digitiser not working.  Quoted customer on whole lcd,digitiser assembly r...   140 114.98  25.02   2013-05-02  complete    2013-05-08  2013-05-01  251258104217

编辑>>
下面是表格中几行的屏幕截图.

编辑>>

这是我的表结构：

最佳答案

你需要改变它

DATE_FORMAT('%Y-%m',completeddate)

至

DATE_FORMAT(completeddate,'%Y-%m')

这就是你在月份列中得到NULL的原因,因此只有一行.

见manual entry.