Question

我正在尝试将以下内容输入到QuoteItem的UPDATE触发器中：

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)

我得到了以下错误：

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.

Answer 1

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

尝试我上面做的更改，指定一个表别名xx并引用它而不是..

Answer 2

Naomi Nosonovsky发现here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)

需要SQL连接到函数的帮助

2 个答案: