将具有超过 255 个字段的制表符分隔的 txt 文件导入两个访问表的工作代码

Question

下面的代码会将包含超过 255 个字段的制表符分隔文件导入两个表中。只需确保在设计两个表时，所有字段都具有正确的数据类型，用于导入的字段。我最初使用 Access 导入文本文件向导创建了我的表。在使用向导之前，我删除了 255 之后的字段以创建第一个表，然后删除第一个 255 以创建第二个表。希望这对某人有所帮助，并感谢以下帮助我完成此项目的所有人。

Public Sub ImportTextFile()
   ' to use the ADODB.Recordset, be sure you have a reference set to ADO
   Dim rst As ADODb.Recordset
   Dim rst2 As ADODb.Recordset
   Dim strFile As String
   Dim strInput As String
   Dim varSplit As Variant
   Dim intCount As Integer

   Set rst = New ADODb.Recordset
   Set rst2 = New ADODb.Recordset
   ' CHANGE THE TABLE NAME HERE
   rst.Open "AppsImport1", CurrentProject.Connection, adOpenDynamic, adLockOptimistic
   rst2.Open "AppsImport2", CurrentProject.Connection, adOpenDynamic, adLockOptimistic
   ' CHANGE THE TEXT FILE NAME AND LOCATION HERE
   strFile = "G:\Home\RiskMgtReports\AutoDatabase\CreditAppExtract.txt"

   Open strFile For Input As #1

   Dim i As Integer
   Dim n As Long

   n = DMax("index_number", "fullextract_hist")

   Do Until EOF(1)
       ' This counter is just to get to the applicable line before importing
       intCount = intCount + 1
       ' reads the text file line by line
       Line Input #1, strInput
       ' starts importing on the second line.  Change the number to match which line you
       ' want to start importing from
       If intCount >= 2 Then
       n = n + 1
           ' creates a single dimension array using the split function
           varSplit = Split(strInput, vbTab, , vbBinaryCompare)
           ' adds the record
           With rst
               .AddNew
               .Fields(0) = n
                For i = 1 To 137
                    If Nz(varSplit(i - 1), "") = "" Then
                    .Fields(i) = Null
                    Else
                    If Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Jan M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Feb M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Mar M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Apr M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "May M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Jun M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Jul M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Aug M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Sep M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Oct M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Nov M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Dec M" Then
                    .Fields(i) = CDate(Format(varSplit(i - 1), "mm/dd/yyyy"))
                    Else
                    .Fields(i) = varSplit(i - 1)
                    End If
                    End If
                Next i
               .Update
               '.MoveNext 'I don't think you should need this
           End With
           With rst2
                .AddNew
                .Fields(0) = n
                .Fields(1) = varSplit(0)
                For i = 138 To 274
                    If Nz(varSplit(i - 1), "") = "" Then
                    .Fields(i - 136) = Null
                    Else
                    If Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Jan M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Feb M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Mar M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Apr M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "May M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Jun M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Jul M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Aug M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Sep M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Oct M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Nov M" Or Left(varSplit(i - 1), 4) & Right(Trim(varSplit(i - 1)), 1) = "Dec M" Then
                    .Fields(i - 136) = CDate(Format(varSplit(i - 1), "mm/dd/yyyy"))
                    Else
                    .Fields(i - 136) = varSplit(i - 1)
                    End If
                    End If
                Next i
                .Update
            End With
       End If
   Loop
   ' garbage collection
   Close #1
   rst.Close
   Set rst = Nothing
   rst2.Close
   Set rst2 = Nothing

End Sub

Answer 1

我承认您在这里尝试做的事情已经不太理想了。我不经常处理需要这么多字段的数据。

这里的解决方案基本上是管理两个不同的记录集对象。

Public Sub ImportTextFile()
   ' to use the ADODB.Recordset, be sure you have a reference set to ADO
   Dim rst As ADODb.Recordset
   Dim rst2 As ADODb.Recordset
   Dim strFile As String
   Dim strInput As String
   Dim varSplit As Variant
   Dim intCount As Integer

   Set rst = New ADODb.Recordset
   Set rst2 = New ADODb.Recordset
   ' CHANGE THE TABLE NAME HERE
   rst.Open "Importtabledata", CurrentProject.Connection, adOpenDynamic, adLockOptimistic
   rst2.Open "importtabledata2", CurrentProject.Connection, adOpenDynamic, adLockOptimistic
   ' CHANGE THE TEXT FILE NAME AND LOCATION HERE
   strFile = "G:\Home\RiskMgtReports\AutoDatabase\fullextract.txt"

   Open strFile For Input As #1

   Dim i as Integer

   Do Until EOF(1)
       ' This counter is just to get to the applicable line before importing
       intCount = intCount + 1
       ' reads the text file line by line
       Line Input #1, strInput
       ' starts importing on the second line.  Change the number to match which line you
       ' want to start importing from
       If intCount >= 256 Then
           ' creates a single dimension array using the split function
           varSplit = Split(strInput, vbTab, , vbBinaryCompare)
           ' adds the record
           With rst
               .AddNew
                For i = 1 to 255
                    .Fields(i) = varSplit(i-1)
                Next i
               .Update
               '.MoveNext 'I don't think you should need this
           End With
           With rst2
                .AddNew
                For i = 256 to UBound(varSplit)
                    .Fields(i) = varSplit(i-1)
                Next i
                .Update
            End With
       End If
   Loop
   ' garbage collection
   Close #1
   rst.Close
   Set rst = Nothing
   rst2.Close
   Set rst2 = Nothing

End Sub