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 cnn As SqlConnection

        Dim cmd As SqlCommand

        Dim sql As String

        Dim reader As SqlDataReader



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

        sql = "Your SQL Statement Here ,  like Select * from product"



        cnn = New SqlConnection(connetionString)

        Try

            cnn.Open()

            cmd = New SqlCommand(sql, cnn)

            reader = cmd.ExecuteReader()

            While reader.Read()

                MsgBox(reader.Item(0) & "  -  " & reader.Item(1) & "  -  " & reader.Item(2))

            End While

            reader.Close()

            cmd.Dispose()

            cnn.Close()

        Catch ex As Exception

            MsgBox("Can not open connection ! ")

        End Try

    End Sub

End Class