Question

我在Access 2010中，正在尝试为以特定方式排序的查询创建排名或行号字段。我尝试了Rank: DCount("id","[Query1]","id <= " & [id])，但它忽略了我的查询排序，因为订单不是ID主键。

Answer 1

我已经看到了你的排序逻辑，似乎我设法通过创建一个额外的查询（Temp）来生成基于它的排名，其中一列包含连接在其中的所有排序函数子产品。此查询的代码应如下所示：

SELECT Table1.Code1, 
    Len(Mid([Code1] & "",1,IIf(InStr([Code1] & "","*")>0,InStr([Code1] & "","*")-1,Len([Table1].[Code1] & "")))) 
    & Mid([Code1] & "",1,IIf(InStr([Code1] & "","*")>0,InStr([Code1] & "","*")-1,Len([Table1].[Code1] & ""))) & 
    Val(Mid([Code1] & "",InStr([Code1] & "","*")+1)) & 
    CStr(Val(Mid([Code1] & "",InStr([Code1] & "","*")+1))) AS OrderCode1
FROM Table1
ORDER BY Len(Mid([Code1] & "",1,IIf(InStr([Code1] & "","*")>0,InStr([Code1] & "","*")-1,Len([Table1].[Code1] & "")))), 
    Mid([Code1] & "",1,IIf(InStr([Code1] & "","*")>0,InStr([Code1] & "","*")-1,Len([Table1].[Code1] & ""))), 
    Val(Mid([Code1] & "",InStr([Code1] & "","*")+1)), 
    CStr(Val(Mid([Code1] & "",InStr([Code1] & "","*")+1))), Table1.Code1;

之后，如果您通过DCount参数创建一个查询，并在WHERE参数上使用带有'OrderCode1'列的SELECT Temp.Code1, DCount("Code1","[Temp]","OrderCode1 <= '" & [OrderCode1] & "'") AS Rank FROM Temp;函数，则应获得顺序排名。像这样：

{{1}}

如果您仍然需要解决方案，可以检查它是否有效！

Answer 2

希望这有帮助

SELECT ROW_NUMBER() OVER (ORDER BY OrderID) AS RowNo, OrderID FROM Orders

SQL：排序有序查询

2 个答案: