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02.19.2008 at 09:16AM PST, ID: 23174978

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8.0

Best way to import a 10 to 150MB comma delimited txt File into a Dataset/table

Zones: ADO.Net Class Library, Microsoft Visual Basic.Net

Tags: VB 2005,ADO.Net 2.0

I get a Master DNC file from the fed ever week with new and deleted phonenumbers. this file can be anywhere from 10 to 150 megabytes in size. Unfortunately I have to process this beast before running it against our SQL Server (2005) database. I have included the code I am currently using to load the file. However; It loads slow AND I am loosing the first column of information which happens to be the phone number!

         
           
           
             'Read the File
        ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & mFolder & "\;Extended Properties='text;HDR=No'"
        CommandText = "select * from DNCProcess.TXT"
        conn = New System.Data.OleDb.OleDbConnection(ConnectionString)
        Command = New System.Data.OleDb.OleDbCommand(CommandText, conn)
        conn.Open()
 
        Dim da As OleDb.OleDbDataAdapter = New OleDb.OleDbDataAdapter(CommandText, conn)
 
        ' fill dataset
        da.Fill(ds, "DNCNumbers")
        dtMain = ds.Tables("DNCNumbers")
        With dtMain
            .Columns(0).ColumnName = "Phone"
            .Columns(1).ColumnName = "ProcDate"
            .Columns(2).ColumnName = "ProcType"
        End With

           
         

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Question Stats

Zone: Programming

Question Asked By: RDWaibel

Solution Provided By: Yiogi

Participating Experts: 1

Solution Grade: A

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