Question

在加载此页面时，我想为每个类别显示两个产品，但是如果我单击一个类别类型，它将显示所有产品。

这是我的代码：

<?php
   $resultspi= $con->query ("SELECT * FROM products WHERE ORDER BY id ASC"); 
   if ($resultspi->num_rows > 0) {
   while($rowpi = mysqli_fetch_array ($resultspi, MYSQL_ASSOC)) { 
         $id = $rowpi['id'];
         $types = $rowpi['type'];
         $image = $rowpi['images'];
         $names = $rowpi['name'];
 ?>
      <div class="item <?php echo $types;?>">
           <a href="uploads/products/<?php echo $image;?>" data-rel="gallery[prodcuts]" title="<?php echo $names;?>" class="">
              <img src="uploads/products/<?php echo $image;?>" alt="<?php echo $names;?>" class="thumb mCS_img_loaded" style="visibility: visible; opacity: 1;">
              <p class="info"> </p>
           <div class="overlay">
              <span></span>
           </div>
            </a>
       </div>
<?php 
      }
    }
 ?>

Answer 1

我使用此查询。这段代码对我有用。

data = pandas.read_csv(file, sep='\t', na_values='')
print(data)

Answer 2

SELECT P.Name, rs.*
FROM (
    SELECT [CustomerNo], PlanId, Rank()
        OVER (Partition BY PlanId
            ORDER BY [CustomerNo] DESC) AS Rank
    FROM CustomerOfPlan
    ) rs
    INNER JOIN [Plan] P ON P.Id = rs.PlanId
WHERE Rank <= 2

在此示例中，我有11个计划和16000个CustomerOfPlans，但结果有22条记录..为什么？每个计划我需要2个CustomerOfPlan。

Answer 3

更改查询，请尝试以下操作：选择*从产品中按ID ASC LIMIT 2排序的商品

如何在每个类别的加载页面上仅获取2个产品

3 个答案: