如何在此 SELECT 语句的结果集中设置字段?

How to Set a Field within the results set of this SELECT statement?

所以我有一个 SQL 查询,我在 Magento 2 数据库上 运行ning。它成功列出了 'status' 为 'disabled' (2) 且库存数量大于 0 的所有项目。

select
  `eav_attribute`.`attribute_id` AS `attribute_id`,
  `catalog_product_entity_int`.`entity_id` AS `entity_id`,
  `catalog_product_entity_int`.`value` AS `value`,
  `eav_attribute`.`attribute_code` AS `attribute_code`,
  `catalog_product_entity`.`sku` AS `sku`,
  `catalog_product_entity`.`type_id` AS `type_id`,
  `cataloginventory_stock_item`.`qty` AS `qty`

from
  (((`eav_attribute`
  join `catalog_product_entity_int` on ((`eav_attribute`.`attribute_id` = `catalog_product_entity_int`.`attribute_id`)))
  join `catalog_product_entity` on ((`catalog_product_entity_int`.`entity_id` = `catalog_product_entity`.`entity_id`)))
  join `cataloginventory_stock_item` on ((`catalog_product_entity_int`.`entity_id` = `cataloginventory_stock_item`.`product_id`)))


where
  ((`eav_attribute`.`attribute_code` = 'status') and
  (`catalog_product_entity_int`.`value` = 2)) and
  (`cataloginventory_stock_item`.`qty` > 0 )

它适用于选择结果集,并为我提供了满足这 2 个条件的准确项目列表。我将如何修改它以将此结果集中项目的 'status' 设置为 'Enabled' (1)。所以基本上,我只需要这些标准 运行,然后对于每个结果,将列 catalog_product_entity_int.value 设置为 1 而不是 2.

您可以使用 update:

update eav_attribute ea join
       catalog_product_entity_int cpei
       on ea.attribute_id = cpei.attribute_id join
       catalog_product_entity cpe
       on cpei.entity_id = cpe.entity_id join
       cataloginventory_stock_item cisi
       on cpei.entity_id = cisi.product_id
    set cpei.value = 2
    where ea.attribute_code = 'status' and
          cpei.value = 2 and
          ci.qty > 0 ;

请注意,我添加了 table 别名并删除了括号和反引号 -- 因此查询更容易编写和阅读。