Sql server 需要有关SQL连接到函数的帮助吗

我正在尝试输入以下内容以更新QuoteItem触发器：

UPDATE QuoteItem
SET List = StyleItem.List, CostFactor = StyleItem.CostFactor, Cost = NULL
FROM dbo.fn_GetQuoteItemListPrice(QuoteItem.ItemId, QuoteItem.RoomId) 
    AS StyleItem
CROSS JOIN (QuoteItem JOIN INSERTED ON 
    QuoteItem.QuoteItemId = INSERTED.QuoteItemId)
WHERE (INSERTED.List IS NULL) AND (INSERTED.ItemId IS NOT NULL)

我得到以下错误：

Msg 4104, Level 16, State 1, Procedure QuoteItem_UPDATE, Line 6
The multi-part identifier "QuoteItem.ItemId" could not be bound.
Msg 4104, Level 16, State 1, Procedure QuoteItem_UPDATE, Line 6
The multi-part identifier "QuoteItem.RoomId" could not be bound.

尝试我在上面所做的更改，分配一个表别名xx并引用它。

由Naomi Nosonovsky找到的答案：

UPDATE QuoteItem
SET List = StyleItem.List, CostFactor = StyleItem.CostFactor, Cost = NULL
FROM QuoteItem JOIN INSERTED AS INSERTED ON QuoteItem.QuoteItemId =
    INSERTED.QuoteItemId
    CROSS APPLY dbo.fn_GetQuoteItemListPrice(QuoteItem.ItemId, QuoteItem.RoomId)
        AS StyleItem 
WHERE (INSERTED.List IS NULL) AND (INSERTED.ItemId IS NOT NULL)

---

Msg 102，级别15，状态1，过程QuoteItem_UPDATE，第13行“xx”附近的语法不正确。很抱歉，我没有打开SQL，但尝试在xx之后添加1=1。另外，为什么需要交叉连接，您不能直接从插入的表中引用ItemID和RoomId？因为您可以看到它是一个多值udf，例如，返回表和我需要的交叉连接，因为我想更新QuoteItem受影响的行-插入的表无法更新。正如你可以猜到的那样，这个函数也做了一些计算，这就是我需要它的方式

UPDATE QuoteItem
SET List = StyleItem.List, CostFactor = StyleItem.CostFactor, Cost = NULL
FROM QuoteItem JOIN INSERTED AS INSERTED ON QuoteItem.QuoteItemId =
    INSERTED.QuoteItemId
    CROSS APPLY dbo.fn_GetQuoteItemListPrice(QuoteItem.ItemId, QuoteItem.RoomId)
        AS StyleItem 
WHERE (INSERTED.List IS NULL) AND (INSERTED.ItemId IS NOT NULL)