MySQL dbCursor 不工作

Question

这是我的代码。我正在尝试将购物车商品移至订单商品表中。它不工作可能是什么问题？

CREATE  PROCEDURE `insert_order_details`
(IN `customer_id` VARCHAR(255), 
 IN `order_id` VARCHAR(255), 
 IN `shipping_country` VARCHAR(255), 
 IN `shipping_state` VARCHAR(255), 
 IN `shipping_address` VARCHAR(255))
BEGIN

DECLARE v_finished INTEGER DEFAULT 0;
DECLARE product_id  varchar(255);
DECLARE quantity integer;
DECLARE unit_price  integer;

Declare cart_cursor CURSOR 
FOR select @order_id, product_id , quantity, unit_price, userID 
from cart where userID=@customer_id and status = 'PENDING';

 DECLARE CONTINUE HANDLER FOR NOT FOUND SET v_finished = 1;
OPEN cart_cursor;

  read_loop: LOOP
    FETCH cart_cursor INTO order_id, product_id, quantity, unit_price, customer_id;

    IF v_finished = 1  THEN
      LEAVE read_loop;
    END IF;
      INSERT INTO order_details 
        (order_id,product_id, quantity, unit_price, 
         customer_id,shipping_country,shippping_state, shipping_address)  
      VALUES 
        (@order_id,product_id, quantity, unit_price, @customer_id, 
        date_added,@shipping_country,@shipping_state,@shipping_address) ;

  END LOOP read_loop;

  CLOSE cart_cursor;
END

Answer 1

您在光标中引用了用户变量@order_id，而实际上您想使用存储过程变量order_id。