複雜查詢的輸出列

Question

我想問一下如何輸出一列與tickerID。

截至目前我有以下：

select distinct 
    mtime, 
    avg(lastBid) Bid , 
    avg(lastAsk) Ask 
from 
    (Select 
     a.mtime, a.IntradayTime, f.lastBid, f.lastAsk 
    from 
     (select 
       cte.*, 
       (select top 1 datetime 
       from IntradayHistory_1min.dbo.IntradayDataHistory' + @product + '_1min' + ' 
       where datetime <= cte.mtime 
       and TickerID = ' + cast(@ticker as nvarchar(24)) + ' 
       order by datetime desc) as IntradayTime 
      from 
       cte) a 
    left join 
     Intradayhistory_1min.dbo.IntradayDataHistory'+ @product + '_1min' + ' f on f.datetime = a.IntradayTime and f.tickerid = ' + cast(@ticker as nvarchar(24)) + ') b 
group by 
    mtime 
order by 
    mtime 
option (maxrecursion 0) 

的dbo.IntradayDataHistory_Rebar_1min的屏幕截圖（在這種情況下：鋼筋是@product）：

更新了澄清：輸出看起來像這樣，

我曾嘗試以下過，沒有工作：

select distinct mtime, 
(ticker) tickerid 
avg(lastBid) Bid , 
avg(lastAsk) Ask 

from (Select a.mtime, a.IntradayTime, f.tickerid, f.lastBid, f.lastAsk 
from (select cte.*, (select top 1 datetime from IntradayHistory_1min.dbo.IntradayDataHistory' + @product + '_1min' + ' 
where datetime <= cte.mtime and TickerID = ' + cast(@ticker as nvarchar(24)) + ' order by datetime desc) as IntradayTime from cte) a 
left join Intradayhistory_1min.dbo.IntradayDataHistory'+ @product + '_1min' + ' f 

on f.datetime = a.IntradayTime and f.tickerid = ' + cast(@ticker as nvarchar(24)) + ') b 
group by mtime order by mtime option (maxrecursion 0) 

的錯誤，我得到：

列「b.tickerid」無效在選擇列表中，因爲它是不包含在聚合函數或GROUP BY子句中。

Answer 1

我找到了解決的辦法就是真正在股票前面加一個平均的功能，所以如下：

select distinct mtime, 
avg(ticker) tickerid 
avg(lastBid) Bid , 
avg(lastAsk) Ask 

from (Select a.mtime, a.IntradayTime, f.tickerid, f.lastBid, f.lastAsk 
from (select cte.*, (select top 1 datetime from IntradayHistory_1min.dbo.IntradayDataHistory' + @product + '_1min' + ' 
where datetime <= cte.mtime and TickerID = ' + cast(@ticker as nvarchar(24)) + ' order by datetime desc) as IntradayTime from cte) a 
left join Intradayhistory_1min.dbo.IntradayDataHistory'+ @product + '_1min' + ' f 

on f.datetime = a.IntradayTime and f.tickerid = ' + cast(@ticker as nvarchar(24)) + ') b 
group by mtime order by mtime option (maxrecursion 0) 

背後的原因是在這裏：Column "invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause"