爲什麼這個字段沒有顯示在結果中？

Question

當我運行下面的選擇時，我沒有在結果集中得到Field3，爲什麼？

Select 
     a.Field1, 
     a.Field2, 
     a.Field3, 
     sum(IsNull(a.Field4, 0)) AS SomeAlias1, 
     a.SomeField5, 
     a.SomeField6, 
     a.SomeField7 
From SomeTable a 
INNER JOIN SomeView1 v on v.au = a.au 
inner join (select Username, House from Users userBuildings where UserName = @UserName) as userHouses on userHouses.au = a.au 
WHERE 
(((where claus logic here.... 

Group BY a.Field1, 
     a.Field2, 
     a.SomeAlias1, 
     a.Field3, 
     a.Field4, 
     a.Field5, 
     a.Field6, 
     a.Fielf7 
) 

Select 
    transBudget.Field1, 
    transBudget.Field2, 
    transDiscount.Field4, 
    ... some other fields... 
    IsNull(transDiscount.Actual, 0) - IsNull(transBudget.Actual, 0) AS Variance 
from (Select * from Transactdions Where TransDesc = 'Budget') AS transBudget 
    FULL OUTER JOIN 
    (Select * from Transactions Where TransDesc = 'Discount') AS transDiscount 
     ON transBudget.Market = transDiscount.Market AND transBudget.SubMarket = transDiscount.SubMarket 

由於某種原因，我看到除了Field3以外的每個字段，它超出了我的這種可能性。

Answer 1

在查詢的第二部分，你缺少場3

Select 
    transBudget.Field1, 
    transBudget.Field2, 
    transDiscount.Field4, 
    ... some other fields... 
    IsNull(transDiscount.Actual, 0) 

你似乎有兩個單獨的SQL查詢存在。第一個包含Field3，但第二個不包含。