SQL不等于0.00十进制值

Question

我正在尝试进行SQL调用，避免使用小计为$ 0的订单。我无法省略小于0.00的订单。

我的SQL电话：

SELECT Orders_Products.productID, 
       Orders_Products.QtyOrdered,
       Orders.DateCreated, 
       Orders_Products.Subtotal, 
       SUM(Orders_Products.Subtotal) as Revenue 
FROM `Orders_Products` 
INNER JOIN Orders 
ON Orders_Products.OrderID = Orders.OrderID 
WHERE ProductID <= 21 
    AND ProductID >= 19 
    OR ProductID = 41 
    AND Orders_Products.Subtotal <> 0.00 
    AND MONTH(Orders.DateCreated) = MONTH(CURDATE()) 
    AND Year(Orders.DateCreated) = YEAR(CURDATE()) 
GROUP BY DateCreated 
ORDER BY `Orders`.`DateCreated` DESC

这就是我遇到问题的地方（仍显示小计0.00的订单）：

AND Orders_Products.Subtotal <> 0.00

我也试过

AND Orders_Products.Subtotal != 0.00
AND Orders_Products.Subtotal <> 0
AND Orders_Products.Subtotal <> "0.00"

但我的输出仍包含小计0.00的订单项：

Answer 1

我猜括号有问题。 它看起来应该作为一个条件收集：

(ProductID <= 21 AND ProductID >= 19 OR ProductID = 41)