The DataSet contains the copy of the data we requested through the SQL statement. We can use Dataset in combination with OleDbDataAdapter class . The OleDbDataAdapter object allows us to populate Data Tables in a DataSet. We can use Fill method in the OleDbDataAdapter for populating data in a Dataset.
VB.NET Source Code
Imports System.Data.OleDb
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connetionString As String
Dim connection As OleDbConnection
Dim oledbAdapter As OleDbDataAdapter
Dim ds As New DataSet
Dim sql As String
Dim i As Integer
connetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Your mdb filename;"
sql = "Your SQL Statement Here"
connection = New OleDbConnection(connetionString)
Try
connection.Open()
oledbAdapter = New OleDbDataAdapter(sql, connection)
oledbAdapter.Fill(ds)
oledbAdapter.Dispose()
connection.Close()
For i = 0 To ds.Tables(0).Rows.Count - 1
MsgBox(ds.Tables(0).Rows(i).Item(0) & " -- " & ds.Tables(0).Rows(i).Item(1))
Next
Catch ex As Exception
MsgBox("Can not open connection ! ")
End Try
End Sub
End Class

The DataSet contains the copy of the data we requested through the SQL statement. We can use Dataset in combination with SqlDataAdapter class . The SqlDataAdapter object allows us to populate Data Tables in a DataSet. We can use Fill method in the SqlDataAdapter for populating data in a Dataset.

Imports System.Data.SqlClient
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim connetionString As String
        Dim connection As SqlConnection
        Dim command As SqlCommand
        Dim adapter As New SqlDataAdapter
        Dim ds As New DataSet
        Dim i As Integer
        Dim sql As String

connetionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password"
sql = "Your SQL Statement Here"

connection = New SqlConnection(connetionString)

        Try
            connection.Open()
            command = New SqlCommand(sql, connection)
            adapter.SelectCommand = command
            adapter.Fill(ds)
            adapter.Dispose()
            command.Dispose()
            connection.Close()

            For i = 0 To ds.Tables(0).Rows.Count - 1
                MsgBox(ds.Tables(0).Rows(i).Item(0) & " -- " & ds.Tables(0).Rows(i).Item(1))
            Next

        Catch ex As Exception
            MsgBox("Can not open connection ! ")
        End Try
    End Sub
End Class

connetionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password"

sql = "Your SQL Statement Here"

You have to replace the string with your real time variables.

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