子窗體不顯示在窗體視圖

Question

我有一個從包含計算字段的查詢派生的子窗體。它不會在窗體視圖中顯示。我已經設置了主和子字段鏈接，並且我的「允許添加」屬性設置爲是。我發現的原因之一是「表單基於沒有記錄的表格」。是這樣的。這當然是一對多的關係，子表格就是多邊表。

下面是該查詢：

SELECT [Management Accounting table].Date_To_Budgets, 
     [Management Accounting table].Date_Returned_To_SCM, 
     [Management Accounting table].Date_To_Assets, 
     [Management Accounting table].Date_Returned_From_Assets, 
     [Management Accounting table].Select_Fund, 
     [Management Accounting table].Project, 
     [Management Accounting table].Select_SubProgramme, 
     [Management Accounting table].Cost_Centre, 
     [Management Accounting table].Item, 
     [Management Accounting table].Supplier, 
     [Management Accounting table].Amount, 
     Sum([Management Accounting table].Amount) AS [Total Amount], 
     SLD_Number 
     FROM [Management Accounting table] 
     GROUP BY [Management Accounting table].Date_To_Budgets, 
       [Management Accounting table].Date_Returned_To_SCM, 
       [Management Accounting table].Date_To_Assets, 
       [Management Accounting table].Date_Returned_From_Assets, 
       [Management Accounting table].Select_Fund, 
       [Management Accounting table].Project, 
       [Management Accounting table].Select_SubProgramme, 
       [Management Accounting table].Cost_Centre, 
       [Management Accounting table].Item, 
       [Management Accounting table].Supplier, 
       [Management Accounting table].Amount, 
       SLD_Number; 

Answer 1

與GROUP BY查詢是由定義爲只讀。見例如here。

因此，'Allow Additions'屬性設置爲yes無關緊要 - 您將無法根據此查詢將數據輸入到子表單中。

=>如果查詢顯示沒有記錄，您的子窗體將完全爲空。