1基于字段值的MS Access查询到多个Excel文件

Question

我有MS Access查询，我想根据字段值导出到多个Excel文件（.xlsx）。在英语中，我有一个查询，其中包含我的所有客户，但我想为每个客户创建一个excel文件，以便我可以稍后通过电子邮件将每个客户记录发送给他/她。

我在这个链接代码https://www.datanumen.com/blogs/export-results-query-multiple-files-access-vba/找到了一个

这个代码适用于一个问题。它将文件导出为文本文件，并且无法转换为代码以导出excel文件，因为我对VBA知之甚少。

Sub DoExport(fieldName As String, queryName As String, filePath As String, Optional delim As Variant = vbTab)
Dim db As Database
Dim objRecordset As ADODB.Recordset
Dim qdf As QueryDef

Dim fldcounter, colno, numcols As Integer
Dim numrows, loopcount As Long
Dim data, fs, fwriter As Variant
Dim fldnames(), headerString As String

'get details of the query we'll be exporting
Set objRecordset = New ADODB.Recordset
Set db = CurrentDb
Set qdf = db.QueryDefs(queryName)

'load the query into a recordset so we can work with it
objRecordset.Open qdf.SQL, CurrentProject.Connection, adOpenDynamic, adLockReadOnly

'load the recordset into an array
data = objRecordset.GetRows

'close the recordset as we're done with it now
objRecordset.Close

'get details of the size of array, and position of the field we're checking for in that array
colno = qdf.Fields(fieldName).OrdinalPosition
numrows = UBound(data, 2)
numcols = UBound(data, 1)


'as we'll need to write out a header for each file - get the field names for that header
'and construct a header string
ReDim fldnames(numcols)
For fldcounter = 0 To qdf.Fields.Count - 1
    fldnames(fldcounter) = qdf.Fields(fldcounter).Name
Next
headerString = Join(fldnames, delim)

'prepare the file scripting interface so we can create and write to our file(s)
Set fs = CreateObject("Scripting.FileSystemObject")

'loop through our array and output to the file
For loopcount = 0 To numrows
    If loopcount > 0 Then
        If data(colno, loopcount) <> data(colno, loopcount - 1) Then
            If Not IsEmpty(fwriter) Then fwriter.Close
            Set fwriter = fs.createTextfile(filePath & data(colno, loopcount) & ".txt", True)
            fwriter.writeline headerString
            writetoFile data, queryName, fwriter, loopcount, numcols
        Else
            writetoFile data, delim, fwriter, loopcount, numcols
        End If
    Else
        Set fwriter = fs.createTextfile(filePath & data(colno, loopcount) & ".txt", True)
        fwriter.writeline headerString
        writetoFile data, delim, fwriter, loopcount, numcols
    End If
Next

'tidy up after ourselves
fwriter.Close
Set fwriter = Nothing
Set objRecordset = Nothing
Set db = Nothing
Set qdf = Nothing

End Sub


'parameters are passed "by reference" to prevent moving potentially large objects around in memory
Sub writetoFile(ByRef data As Variant, ByVal delim As Variant, ByRef fwriter As Variant, ByVal counter As Long, ByVal numcols As Integer)
Dim loopcount As Integer
Dim outstr As String

For loopcount = 0 To numcols
    outstr = outstr & data(loopcount, counter)
    If loopcount < numcols Then outstr = outstr & delim
Next
fwriter.writeline outstr
End Sub

非常感谢您的帮助和支持。谢谢！

Answer 1

考虑在跨越不同客户的记录集的循环中使用Access'DoCmd.TransferSpreadsheet方法。无需生成文本文件，设置数组或标头循环。请务必事先创建查询[MyTempQuery]（可以是每次迭代都会覆盖SQL的任何内容。还要确保转义客户名称中的任何单引号。

Dim Db As DAO.Database, qdef AS DAO.QueryDef, rst As DAO.Recordset

Set db = CurrentDb
Set rst = db.OpenRecordset("SELECT DISTINCT [CustomerName] FROM [QueryName]")

Do While Not rst.EOF
    Set qdef = db.QueryDefs("[MyTempQuery"])
    qdef.SQL = "SELECT * FROM [QueryName] WHERE Customer = '" & rst!CustomerName & "'"

    Set qdef = Nothing
    DoCmd.TransferSpreadsheet acExport, acSpreadsheetTypeExcel12Xml, "MyTempQuery", _
                  "C:\Path\To\Excel\Files\" & rst!CustomerName & ".xlsx", True
    rst.MoveNext
Loop

rst.Close
Set rst = Nothing: Set db = Nothing