HELP! I need to know how to do a search/prevent dupes.

Hello everyone. I've got limited experience with Visual Basic. I do know some VBScript and such, but I've been put in charge of a database project at work. I'm working on an MS Access 2002 database, and implimented a code to import the records there to import over into the MS Outlook 2002 Contacts folder. However, it copies each and every single record. If I do the import again, it copies all the records over a 2nd time. Can someone help me out with a brief code example that will allow me to search the MS Outlook 'Contacts' folder before data is sent, so that I don't import duplicates into the folder? I'll attach the original source code below:


Function BatchUpload()

' Setup DAO Database Schtuffins.
Dim oDataBase As DAO.Database
Dim rst As DAO.Recordset
Set oDataBase = OpenDatabase _
("K:\Bill Garrett\sulphur DB\sulphur.mdb")
Set rst = oDataBase.OpenRecordset("Contacts")

' Setup Outlook Schtuffins.
Dim ol As New Outlook.Application
Dim olns As Outlook.NameSpace
Dim cf As Outlook.MAPIFolder
Dim c As Outlook.ContactItem
Dim Prop As Outlook.UserProperty
Set olns = ol.GetNamespace("MAPI")
Set cf = olns.GetDefaultFolder(olFolderContacts)

With rst
.MoveFirst

' Loop through Sulphur's records.
Do While Not .EOF


' Create new Contact item.
Set c = ol.CreateItem(olContactItem)

' Specify form
c.MessageClass = "IPM.Contact"

' Create all prebuilt Outlook fields and make associations
If ![COMPANY] <> "" Then c.CompanyName = ![COMPANY]
If ![F_NAME] & ![L_NAME] <> "" Then c.FULLNAME = ![F_NAME] & " " & ![L_NAME]

' Create the first property (UserField1) and give value
Set Prop = c.UserProperties.Add("UserField1", olText)
If ![CONTACT_ID] <> "" Then Prop = ![CONTACT_ID]

' Create the second user property (UserField2) and give value
Set Prop = c.UserProperties.Add("UserField2", olText)
If ![REGION] <> "" Then Prop = ![REGION]

' Save and close the contact.
c.Save
' c.Close -Can't close or I get an error?

.MoveNext

Loop

End With

End Function





Thanks for your time,

Bill Garrett
Network Engineer (Not a programmer) :)
Capitol Computer Exchange
www.ccex.com

You could use an SQL statement to form your query/filter, something like this...


In (SELECT [Somedata] FROM [Table1] As Tmp GROUP BY [Somedata] HAVING Count(*)>1

...this is a modified SQL statement that I just cut out of an MS Access DB that I made. You might want to take a look at the "Find Duplicates Query Wizard" in Access if you have it. It will create the SQL statement for you. Good luck with your code!