Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions

Connecting to a Paradox database with VB

Posted on 2000-04-03
Last Modified: 2010-05-02
I am trying to write a VB program that connects to a Paradox database to extract information. I have looked at the online help but I am not getting anywhere with it.
I can connect to a Access database and extract information from that with no problem, but I cannot connect to a Paradox DB in the same way.
Can anyone tell me what I need to do?
Question by:tonytaylor
  • 3
  • 2

Expert Comment

ID: 2679352

The easiest way is to Set the Connect property of the data control to Paradox. This will allow you to

However if you need to query data into and from Access to Paradox you need to attach the table.

If you have the retail version of Access you should right mouse click the table tab and select link tables and use this to attach your Paradox tables.

You can also attach this in code by using the tabledefs object

Set NewTD=myDb.CreateTableDef("NewtableName")

NewTD.Connect="Paradox 4.x;Database=C:\Mydir\Mydb;"

Mydb.Append NewTD

This will attach the table to your Access database.

This is the correct answer

Thanks in Advance for the points


Author Comment

ID: 2679488
Thanks for your swift response, Voodooman.
Your answer would help me to link an Access db to a Paradox one, but I am not sure if I was clear enough in my question.
What I need to do is connect to a Paradox db and extract information from it with a VB program (probably using a SELECT statement) and then write this information to a text file.
If you could give me the code to connect and extract info from a Paradox db I will increase the points value of the question.
Also is there any difference between version 7 of Paradox and earlier versions?

Accepted Solution

Voodooman earned 150 total points
ID: 2683111

if you want to query the Paradox table set the data source to an sql string.

mydatacontrol.DATASource="Select * from stock"


Here is some code that writes a csv

This includes the field names selectively - you could do this with the SQL if you want

Public Function ExportStockTable() As Boolean

Dim rs As dao.Recordset
Dim filestr As String
Dim GetDir As String
Dim recstr As String

On Error GoTo E:

'make sure the Export Directory exists
'if not create it
GetDir = Dir(Envobj.ProgramLocation & "Export", vbDirectory)
If GetDir = "" Then
    MkDir Envobj.ProgramLocation & "Export"
    End If
filename = Envobj.ProgramLocation & "Export\Stock.txt"

'now create the blank file or if it exists clear it
Open filename For Output As #1
Close #1

'Set the data
Set rs = data_Stock.recordset

If rs.RecordCount = 0 Then
   Imessage "No Stock Records to Export!"
   Exit Function
End If

Open filename For Append As #1

'Add the first row with the table names
Print #1, "Code,Date,Supplier,Label,Description,Category,SizeRange,Size,Sell Price,VatRate,Colour,BuyPrice,Style,StyleName"

Do Until rs.EOF

For I = 0 To rs.Fields.Count - 1

'Select the field names for the Export
Select Case rs(I).Name
    Case "Code", "Date", "Supplier", "Label", "Description", "Category", "SizeRange", "Size", "Sell Price", "VatRate", "Colour", "BuyPrice", "Style", "StyleName"
        'if its Text
            If rs.Fields(I).Type = dbText Then
                If IsNull(rs.Fields(I)) Then
                recstr = recstr & Chr(34) & Chr(34)
                recstr = recstr & Chr(34) & rs.Fields(I) & Chr(34)
                End If
            End If
            'if its date
            If rs.Fields(I).Type = dbDate Then
                If Not IsNull(rs.Fields(I)) Then
                recstr = recstr & rs.Fields(I)
                End If
            End If
             'if its not text and not date
            If rs.Fields(I).Type <> dbText And rs.Fields(I).Type <> dbDate Then
                If Not IsNull(rs.Fields(I)) Then
                recstr = recstr & Format$(rs.Fields(I))
                End If
            End If
recstr = recstr & ","
End Select

Next I

'trim the last comma off the end
recstr = Left(recstr, Len(recstr) - 1)

Print #1, recstr
recstr = ""



Close #1

ExportStockTable = True

Exit Function

Emessage "An error has occurred writing Stock.txt!"
Exit Function

End Function

Good Luck



Author Comment

ID: 2686595
Adjusted points from 100 to 150

Author Comment

ID: 2686596
Thanks Voodooman.
Your answers helped me to do what I need so far. I may well be back with more questions later.

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When trying to find the cause of a problem in VBA or VB6 it's often valuable to know what procedures were executed prior to the error. You can use the Call Stack for that but it is often inadequate because it may show procedures you aren't intereste…
Background What I'm presenting in this article is the result of 2 conditions in my work area: We have a SQL Server production environment but no development or test environment; andWe have an MS Access front end using tables in SQL Server but we a…
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question