MySQL 查询 - Magento 指定的属性在一行

Question

我有点 MySQL 菜鸟，一直在尝试从 Magento 中提取产品列表和多个属性。我目前有以下查询，它提取属性 185 和 180。但是，这些是在单独的行中输出的。我想编辑查询，以便每个产品的属性都在一行中。我的查询是：

SELECT
    ce.sku AS sku,
    ce_decimal.value AS attribute1,
    ce_int.value AS attribute2
FROM catalog_product_entity AS ce
LEFT JOIN eav_attribute AS ea
    ON ce.entity_type_id = ea.entity_type_id
LEFT JOIN catalog_product_entity_decimal AS ce_decimal
    ON ce.entity_id = ce_decimal.entity_id
    AND ea.attribute_id = ce_decimal.attribute_id
    AND ea.backend_type = 'decimal'
LEFT JOIN catalog_product_entity_int AS ce_int
    ON ce.entity_id = ce_int.entity_id
    AND ea.attribute_id = ce_int.attribute_id
    AND ea.backend_type = 'int'
WHERE ce_decimal.attribute_id = '185'
OR ce_int.attribute_id = '180'

结果如下：

_______________________________________
sku      attribute1        attribute2
_______________________________________
543      NULL              105
543      34.95             NULL     
768      NULL              104
768      15.67             NULL  
_______________________________________

我要找的结果是：

_______________________________________
sku      attribute1        attribute2
_______________________________________
543      34.95             105  
768      15.67             104 
_______________________________________

我需要使用 GROUP_CONCAT 或类似的东西吗？这让我发疯..谢谢！

Answer 1

你可以用 GROUP BY:

来压缩它

SELECT sku,
       MAX(attribute1) AS attribute1,
       MAX(attribute2) AS attribute2
FROM (
  SELECT
    ce.sku AS sku,
    ce_decimal.value AS attribute1,
    ce_int.value AS attribute2
  FROM catalog_product_entity AS ce
  LEFT JOIN eav_attribute AS ea
    ON ce.entity_type_id = ea.entity_type_id
  LEFT JOIN catalog_product_entity_decimal AS ce_decimal
    ON ce.entity_id = ce_decimal.entity_id
    AND ea.attribute_id = ce_decimal.attribute_id
    AND ea.backend_type = 'decimal'
  LEFT JOIN catalog_product_entity_int AS ce_int
    ON ce.entity_id = ce_int.entity_id
    AND ea.attribute_id = ce_int.attribute_id
    AND ea.backend_type = 'int'
  WHERE ce_decimal.attribute_id = '185'
     OR ce_int.attribute_id = '180'
) AS sub
GROUP BY sku;

如果每个 sku 有多个值，请使用 GROUP_CONCAT:

 SELECT sku,
       GROUP_CONCAT(attribute1) AS attribute1,
       GROUP_CONCAT(attribute2) AS attribute2

SqlFiddleDemo

MySQL 查询 - Magento 指定的属性在一行

MySQL Query - Magento specified attributes on one row

mysql

magento

entity-attribute-value