Update 'grocery_db_tables.sql'

grocery_db_tables.sql

@@ -163,6 +163,7 @@ CREATE TABLE IF NOT EXISTS `cart` (
     `UserID` int NOT NULL,
     `OrderID` int NOT NULL,
     `ProductName` varchar(50) NOT NULL,
+    `ProductPrice` int(5) NOT NULL,
     `Quantity` int NOT NULL,
     PRIMARY KEY (`CartID`),
     FOREIGN KEY (`UserID`) REFERENCES users(`UserID`)