不知道为什么以下不起作用:
SELECT Menus.Id, MealTimes.Id,
Menus.MealTime_Id, CAST(MealTimes.Name AS TEXT) as MName,
CONVERT(VARCHAR(10), Menus.Date, 126) as Date,
CAST(Dishes.Name AS TEXT) as Name
FROM C
JOIN Menus
ON Menus.MealTime_Id=MealTimes.Id
JOIN MenuDish
ON MenuDish.Menus_Id=Menus.Id
JOIN Dishes
ON Dishes.Id=MenuDish.Dishes_Id
WHERE C.Id=110 AND Menus.Date BETWEEN "2013-01-21" AND "2013-01-25"
它现在抛出以下错误:
无法绑定多部分标识符“MealTimes.Name”。
我的加入基本上是这样的:
$this->db->join('Menus', 'Menus.MealTime_Id=MealTimes.Id');
$this->db->join('MenuDish', 'MenuDish.Menus_Id=Menus.Id');
$this->db->join('Dishes', 'Dishes.Id=MenuDish.Dishes_Id');
谢谢你的帮助。