问题
This code below will import a tab delimited file with over 255 fields into two tables. Just make sure when you design your two tables all your fields have the correct data types for the fields being imported. I originally created my tables by using Access import text file wizard. Before using the wizard I deleted the fields after 255 to create the first table and then deleted the first 255 to create the second table. Hopes this helps someone and thanks to everyone below who helped me with this project.
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
回答1:
I admit that what you're trying to do here is already less than ideal. I don't often work with data where this many fields are needed.
The solution here is basically to manage two different recordset objects.
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
来源：https://stackoverflow.com/questions/17975454/working-code-to-import-tab-delimited-txt-file-with-more-than-255-fields-into-two