クロステーブルJOINエラー

Question

残念ながら問題は何ですか？

UPDATE catalog_product_entity_varchar SET value = '{somevalue}' 

    FROM cataloginventory_stock_item AS csi 
    JOIN catalog_product_entity AS cpe ON cpe.entity_id = csi.product_id 
    JOIN catalog_product_entity_varchar AS cpev ON cpev.entity_id = cpe.entity_id 

WHERE attribute_id = '1691' AND sku = '605284470695'; 

ERROR

Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM cataloginventory_stock_item AS csi  JOIN catalog_pr' at line 3 

Answer 1

SET句は、テーブルの参照の後に来る必要があります：

UPDATE 
    cataloginventory_stock_item AS csi 
    JOIN catalog_product_entity AS cpe ON cpe.entity_id = csi.product_id 
    JOIN catalog_product_entity_varchar AS cpev ON cpev.entity_id = cpe.entity_id 
SET cpev.value = '{somevalue}' 
WHERE attribute_id = '1691' AND sku = '605284470695'; 

Answer 2

あなたはUPDATE ... FROMを行うことはできません。それはまったく無効な構文です。おそらくあなたはINSERT INTO ... SELECT FROMを考えているでしょうか？