Sql server 2008在视图中加入查询

Question

Please help. I have the below SQL code and it keeps getting errors:

create view vwUpcoming
as 
    Select a.Auction_ID, b.item_name, b.Item_Description, 
        b.Item_value, a.Expected_Start_time
    from  Auction_schedule a 
    join Item b 
        on Auction.Item_ID= Item.Item_ID 
    where a.Expected_Start_Time < CURRENT_TIMESTAMP

The error message is:

Msg 4104, Level 16, State 1, Line 2
The multi-part identifier "Item.Item_ID" could not be bound.
Msg 4104, Level 16, State 1, Line 2
The multi-part identifier "Auction.Item_ID" could not be bound.

Answer 1

You are using the wrong aliases on this line:

on Auction.Item_ID= Item.Item_ID 

You have called these tables either a or b so you need to reference those names, change the line to this:

on a.Item_ID= b.Item_ID 

So your full query will be:

create view vwUpcoming
as 
    Select a.Auction_ID, b.item_name, b.Item_Description, 
        b.Item_value, a.Expected_Start_time
    from  Auction_schedule a
    join Item b 
        on a.Item_ID= b.Item_ID 
    where a.Expected_Start_Time < CURRENT_TIMESTAMP