我在我的magento数据库中创建了一个查询,以查找具有“New From”数据但没有“New To”的产品。
SELECT
catalog_product_entity.entity_id,
catalog_product_entity.sku,
a.value as New_From,
b.value as New_To
FROM `catalog_product_entity`
INNER JOIN catalog_product_entity_datetime as a on a.entity_id = catalog_product_entity.entity_id and a.attribute_id = '93'
INNER JOIN catalog_product_entity_datetime as b on b.entity_id = catalog_product_entity.entity_id and b.attribute_id = '94'
WHERE a.value IS NOT NULL AND b.value IS NULL
现在我想要完成的是因为它涉及500多个项目,在此查询中运行UPDATE语句,在打开后1个月关闭“新到”。
任何想法如何运行?
所以澄清一下:
表1:(catalog_product_entity)
| entity_id | sku |
| --------- | --- |
| 1 | ABC |
| 2 | DEF |
表2:(catalog_product_entity_datetime)
| id | entity_id | attribute_id | value |
| --- | --------- | ------------ | ----- |
| 1 | 1 | 93 | 2013-06-12 00:00:00 |
| 2 | 1 | 94 | 2013-07-12 00:00:00 |
| 3 | 1 | 98 | Some other attribute |
| 4 | 2 | 93 | 2014-08-20 00:00:00 |
| 5 | 2 | 94 | NULL | <- This I want updating
| 6 | 2 | 98 | Some other attribute |
我想用同一个表中的日期+ 1个月更新表2中的NULL值。我的搜索返回:
| entity -id | sku | New_From | New_To |
| ----------- | --- | ------------------- | ------------------- |
| 2 | DEF | 2014-08-20 00:00:00 | NULL |
所以我想编写将该字段更新为New_From + 1个月的查询。
| entity -id | sku | New_From | New_To |
| ----------- | --- | ------------------- | ------------------- |
| 2 | DEF | 2014-08-20 00:00:00 | 2014-09-20 00:00:00 |
在我看来,我最终会得到这样的东西:(但这个不起作用)
UPDATE catalog_product_entity_datetime
SET value = TIMESTAMP(a.value+300000000)
INNER JOIN catalog_product_entity_datetime as a on a.entity_id = catalog_product_entity_datetime.entity_id and a.attribute_id = '93'
WHERE attribute_id=94
答案 0 :(得分:0)
试试这个:
UPDATE catalog_product_entity_datetime t1
JOIN catalog_product_entity t2
ON t1.entity_id = t2.entity_id
AND t1.attribute_id = 94
JOIN catalog_product_entity_datetime t3
ON t2.entity_id = t3.entity_id
AND t3.attribute_id = 93
SET t1.value = CASE WHEN t1.value IS NULL THEN date_add(t3.value, interval 1 month)
ELSE t1.value END
;