是否有可能在INSERT ON DUPLICATE KEY UPDATE中使用'join'

Question

我試圖改變我的代碼，所以當在webshop_stock中沒有匹配的「ean13」的行時，它必須插入。

但是mysql不接受我測試過的代碼，爲了得到它，我嘗試了幾件事情。我在谷歌的搜索，我沒有找到一個工作示例與「插入 - 加入 - 重複密鑰更新」，這是可能的嗎？

現在的問題是我的行在不存在時被創建，但存在的行不會被更新。

測試了以下的代碼：

$get_input = " 
INSERT INTO webshop_stock 
    (id_warehouse,id_product,id_product_attribute,ean13, physical_quantity, usable_quantity) 
    SELECT 
     '1', 
     pa.id_product, 
     pa.id_product_attribute, 
     pa.ean13, 
     ai.quantity, 
     ai.quantity 
    FROM 
     webshop_product_attribute pa, 
     Adcount_input ai 
    WHERE 
     pa.ean13 = ai.ean13 
    AND NOT EXISTS 
     (SELECT id_product_attribute FROM webshop_stock WHERE id_product_attribute = pa.id_product_attribute) 
    ON DUPLICATE KEY UPDATE 
     physical_quantity = ai.quantity, 
     usable_quantity = ai.quantity 
"; 

原始代碼：

$get_input = " 
UPDATE 
    webshop_stock AS s 
JOIN(
    SELECT 
     pa.ean13, 
     pa.id_product_attribute, 
     pa.id_product, 
     ai.quantity 
    FROM 
     webshop_product_attribute pa, 
     Adcount_input ai 
    WHERE 
     pa.ean13=ai.ean13) q 
SET 
     s.id_warehouse = 1, 
     s.id_product = q.id_product, 
     s.id_product_attribute = q.id_product_attribute, 
     s.ean13 = q.ean13, 
     s.physical_quantity = q.quantity, 
     s.usable_quantity = q.quantity 
WHERE 
     s.id_product_attribute = q.id_product_attribute"; 

Answer 1

解決這段代碼做什麼，我需要的。

$get_input = " 
INSERT INTO webshop_stock 
    (id_warehouse,id_product,id_product_attribute,ean13, physical_quantity, usable_quantity) 
    SELECT 
     '1', 
     pa.id_product, 
     pa.id_product_attribute, 
     pa.ean13, 
     ai.quantity, 
     ai.quantity 
    FROM 
     webshop_product_attribute pa, 
     Adcount_input ai 
    WHERE 
     pa.ean13 = ai.ean13 
    ON DUPLICATE KEY UPDATE 
     physical_quantity = ai.quantity, usable_quantity = ai.quantity 

"; 

Answer 2

的語法是：

INSERT <table> <field list> 
SELECT ... JOIN ... 

Ť這裏是NOINSERT JOIN SELECT在mysql中。它是INSERT SELECT JOIN。

http://dev.mysql.com/doc/refman/5.1/en/insert-select.html