簡單的insert語句中where子句附近的mysql錯誤

Question

INSERT INTO orders_total SET `title`='Discount Coupon:', `text` = '-$40.00', `value` = '40.00' WHERE `orders_id` = '15474' AND `class`='ot_coupon

它給出以下mysql錯誤：

#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 'WHERE `orders_id` = '15474' AND `class`='ot_coupon'' at line 1

知道我在做什么錯嗎？

Answer 1

INSERT語句旨在插入新行，現在更新現有行，因此WHERE子句在INSERT無效。 您打算進行UPDATE 。

UPDATE orders_total
SET 
  `title`='Discount Coupon:', 
  `text` = '-$40.00', 
  `value` = '40.00'
WHERE 
  `orders_id` = '15474' 
  AND `class`='ot_coupon'

評論后編輯：

如果打算將其作為插入而不是更新，則它不能依賴於orders_id = 15474類的條件。 如果要插入新行，則還需要插入這些值。

INSERT INTO orders_total (`orders_id`, `class`, `title`, `text`, `value`) VALUES (15474, 'ot_coupon', 'Discount Coupon:', '-$40.00', '40.00');