從自定義SQL選擇查詢刪除重複的行

Question

我有一個表設置爲每個數據項具有唯一的Match_ID。但是，當我想調用從Team表中收集團隊名稱的自定義選擇查詢時，我得到的重複行列出了兩個相同的Match_ID。我想在GridView中以列Home team，Away team,Home team score,和Game date顯示唯一的行。我不想在他們的專欄中顯示團隊的ID，而是他們的團隊名稱。但是我也想確保我可以更新這個GridView，因爲使用AS阻止了我在過去能夠這樣做。

下面是我用圖像顯示查詢返回的內容。我正在使用SQL數據源。

SELECT  MatchStatistics.Match_ID, MatchStatistics.Home_team_ID, MatchStatistics.Away_team_ID, MatchStatistics.Home_team_score, MatchStatistics.Away_team_score, MatchStatistics.Game_date, 
         Team.Team_name 
FROM   MatchStatistics INNER JOIN 
         Team ON MatchStatistics.Home_team_ID = Team.Team_ID OR MatchStatistics.Away_team_ID = Team.Team_ID 
WHERE  EXISTS 
          (SELECT DISTINCT Match_ID 
           FROM   MatchStatistics AS MatchStatistics_1) 

<asp:GridView ID="EnterMatchGridView" runat="server" AutoGenerateColumns="False" DataKeyNames="Match_ID" DataSourceID="SqlDataSource4" OnRowUpdating="EnterMatchGridView_RowUpdating" OnRowDeleting="EnterMatchGridView_RowDeleting"> 
     <Columns> 
      <asp:BoundField DataField="Match_ID" HeaderText="Match_ID" SortExpression="Match_ID" InsertVisible="False" ReadOnly="True" /> 
      <asp:TemplateField HeaderText="Home Team" SortExpression="Home_Team_Name"> 
       <EditItemTemplate> 
        <asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("Home_Team_Name") %>'></asp:TextBox> 

       </EditItemTemplate> 
       <ItemTemplate> 
        <asp:Label ID="Label2" runat="server" Text='<%# Bind("Home_Team_Name") %>'></asp:Label> 
       </ItemTemplate> 
      </asp:TemplateField> 
      <asp:TemplateField HeaderText="Away Team" SortExpression="Away_Team_Name"> 
       <EditItemTemplate> 
        <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Away_Team_Name") %>'></asp:TextBox> 
       </EditItemTemplate> 
       <ItemTemplate> 
        <asp:Label ID="Label1" runat="server" Text='<%# Bind("Away_Team_Name") %>'></asp:Label> 
       </ItemTemplate> 
      </asp:TemplateField> 
      <asp:TemplateField HeaderText="Home Team Score" SortExpression="Home_team_score"> 
       <EditItemTemplate> 
        <asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("Home_team_score") %>'></asp:TextBox> 
       </EditItemTemplate> 
       <ItemTemplate> 
        <asp:Label ID="Label4" runat="server" Text='<%# Bind("Home_team_score") %>'></asp:Label> 
       </ItemTemplate> 
      </asp:TemplateField> 
      <asp:TemplateField HeaderText="Away Team Score" SortExpression="Away_team_score"> 
       <EditItemTemplate> 
        <asp:TextBox ID="TextBox5" runat="server" Text='<%# Bind("Away_team_score") %>'></asp:TextBox> 
       </EditItemTemplate> 
       <ItemTemplate> 
        <asp:Label ID="Label5" runat="server" Text='<%# Bind("Away_team_score") %>'></asp:Label> 
       </ItemTemplate> 
      </asp:TemplateField> 
      <asp:TemplateField HeaderText="Date" SortExpression="Game_date"> 
       <EditItemTemplate> 
        <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Game_date", "{0:dd-MM-yyyy}") %>'></asp:TextBox> 
       </EditItemTemplate> 
       <ItemTemplate> 
        <asp:Label ID="Label3" runat="server" Text='<%# Bind("Game_date", "{0:dd-MM-yyyy}") %>'></asp:Label> 
       </ItemTemplate> 
      </asp:TemplateField> 
      <asp:TemplateField HeaderText="Edit/Delete"> 
       <ItemTemplate> 
        <asp:LinkButton ID="BtnEdit" runat="server" CausesValidation="false" CommandName="Edit" Text="Edit" /> 
        <span onclick="return confirm ('Are you Sure?')"> 
         <asp:LinkButton ID="BtnDelete" runat="server" CausesValidation="False" CommandName="Delete" Text="Delete" /> 
        </span> 
       </ItemTemplate> 
       <EditItemTemplate> 
        <asp:Button ID="BtnUpdate" runat="server" CausesValidation="true" CommandName="Update" ConflictDetection="OverwriteChanges" Text="Update" ValidationGroup="EnterMatchGridView" /> 
        <asp:Button ID="BtnCancel" runat="server" CausesValidation="false" CommandName="Cancel" ConflictDetection="OverwriteChanges" Text="Cancel" /> 
       </EditItemTemplate> 
      </asp:TemplateField> 
     </Columns> 
    </asp:GridView> 

總之，如何使這個查詢的每一行返回唯一一個獨特MATCH_ID？

Answer 1

那不是......

SELECT s.Match_ID 
    , s.Home_team_ID 
    , s.Away_team_ID 
    , s.Home_team_score 
    , s.Away_team_score 
    , s.Game_date 
    , h.Team_name home_team 
    , a.Team_name away_team 
    FROM MatchStatistics s 
    JOIN Team h 
    ON h.Team_ID = s.Home_team_ID 
    JOIN Team a 
    ON a.Team_ID = s.Away_team_ID 

???