我需要帮助在Access中创建一个查询,以逐步编号的行组,按公共日期分组,并在下一个日期保持“组编号”增量,如在结果列中显示。
2017/01/09 | 809 | 1
2017/01/09 | 810 | 1
2017/01/09 | 826 | 1
2017/01/10 | 826 | 2
2017/01/11 | 809 | 3
2017/01/11 | 810 | 3
2013/01/11 | 826 | 3
2017/01/12 | 809 | 4
2017/01/12 | 810 | 4
2017/01/12 | 826 | 4
谢谢
答案 0 :(得分:1)
这是一种方法:
SELECT A.*, (SELECT Count(*) FROM (SELECT DISTINCT [Date] FROM Table1) AS Q1 WHERE A.Date>=[Date]) AS GrpSeq FROM Table1 AS A;
另一个是报告中组头中文本框的属性:
RunningSum:OverGroup
ControlSource:= 1
答案 1 :(得分:0)
您可以使用此功能,这完全是出于此目的。有关典型用法,请参阅内嵌注释:
Public Function RowCounter( _
ByVal strKey As String, _
ByVal booReset As Boolean, _
Optional ByVal strGroupKey As String) _
As Long
' Builds consecutive RowIDs in select, append or create query
' with the possibility of automatic reset.
' Optionally a grouping key can be passed to reset the row count
' for every group key.
'
' Usage (typical select query):
' SELECT RowCounter(CStr([ID]),False) AS RowID, *
' FROM tblSomeTable
' WHERE (RowCounter(CStr([ID]),False) <> RowCounter("",True));
'
' Usage (with group key):
' SELECT RowCounter(CStr([ID]),False,CStr[GroupID])) AS RowID, *
' FROM tblSomeTable
' WHERE (RowCounter(CStr([ID]),False) <> RowCounter("",True));
'
' The Where statement resets the counter when the query is run
' and is needed for browsing a select query.
'
' Usage (typical append query, manual reset):
' 1. Reset counter manually:
' Call RowCounter(vbNullString, False)
' 2. Run query:
' INSERT INTO tblTemp ( RowID )
' SELECT RowCounter(CStr([ID]),False) AS RowID, *
' FROM tblSomeTable;
'
' Usage (typical append query, automatic reset):
' INSERT INTO tblTemp ( RowID )
' SELECT RowCounter(CStr([ID]),False) AS RowID, *
' FROM tblSomeTable
' WHERE (RowCounter("",True)=0);
'
' 2002-04-13. Cactus Data ApS. CPH
' 2002-09-09. Str() sometimes fails. Replaced with CStr().
' 2005-10-21. Str(col.Count + 1) reduced to col.Count + 1.
' 2008-02-27. Optional group parameter added.
' 2010-08-04. Corrected that group key missed first row in group.
Static col As New Collection
Static strGroup As String
On Error GoTo Err_RowCounter
If booReset = True Then
Set col = Nothing
ElseIf strGroup <> strGroupKey Then
Set col = Nothing
strGroup = strGroupKey
col.Add 1, strKey
Else
col.Add col.Count + 1, strKey
End If
RowCounter = col(strKey)
Exit_RowCounter:
Exit Function
Err_RowCounter:
Select Case Err
Case 457
' Key is present.
Resume Next
Case Else
' Some other error.
Resume Exit_RowCounter
End Select
End Function
对于你的情况,它可能是:
SELECT RowCounter(CStr([ID]), False, Format([Date], "yyyymmdd") AS RowID, *
FROM YourTable
WHERE (RowCounter(CStr([ID]), False) <> RowCounter("", True));