0

我的脚本-：

UPDATE catalog_product_price 
SET catalog_product_price.value = 200
WHERE value_id = (
    SELECT value_id
    FROM catalog_product_price
    WHERE `entity_id` = ( 
        SELECT `entity_id` 
        FROM `catalog_product_entity` 
        WHERE `sku` LIKE 'sample'
        ) 
    AND website_id = 10
    AND customer_group_id= (
        SELECT customer_group_id
        FROM customer_group
        WHERE 
            customer_group_id = catalog_product_price.customer_group_id 
            AND customer_group_code =100
        )
    )

它给了我以下错误-：

#1093 - 您不能在 FROM 子句中指定目标表 'catalog_product_price' 进行更新

任何人都可以为我提供与我在此链接上尝试的解决方案相同的解决方案-： http ://www.mysqlfaqs.net/mysql-faqs/Errors/1093-You-can-not-specify-target-table-comments- for-update-in-FROM-clause 但无法执行...请帮助我..

4

2 回答 2

5

您需要将表连接到 UPDATE 语句而不是使用所有这些子查询

UPDATE  catalog_product_price cpp

JOIN    catalog_product_entity cpe
  ON    cpe.entity_id = cpp.entity_id
  AND   cpe.sku LIKE 'sample'
  AND   website_id = 10

JOIN    customer_group cg
  ON    cg.customer_group_id = cpp.customer_group_id
  AND   cg.customer_group_code = 100

SET cpp.value = 200

注意：您的语法很难阅读，因此我可能在解释它时犯了错误。无论如何，这就是想法，它应该可以帮助您获得最终答案。

于 2012-04-04T15:02:34.140 回答
3

将查询的值存储在用户定义的变量中：

set @value_id := (
    SELECT value_id
    FROM catalog_product_price
    WHERE `entity_id` = ( 
        SELECT `entity_id` 
        FROM `catalog_product_entity` 
        WHERE `sku` LIKE 'sample'
    );
set @customer_group_id := (
    SELECT customer_group_id
    FROM catalog_product_price
    WHERE `entity_id` = ( 
        SELECT `entity_id` 
        FROM `catalog_product_entity` 
        WHERE `sku` LIKE 'sample'
    );

UPDATE catalog_product_price 
SET catalog_product_price.value = 200
WHERE value_id = @value_id 
AND website_id = 10
AND customer_group_id = @customer_group_id;

请注意，您的第二个内部查询是无稽之谈-您正在选择customer_group_id由于 where 子句而其值已知的列WHERE customer_group_id = catalog_product_price.customer_group_id...完全多余

于 2012-04-04T15:15:18.267 回答