Hi Friends

I know little bit abt the SQL DB and Data set.... well i want to have complete knowledge abt these 2.... well i hav created this below program this morning...
Code:
Imports System.Data.SqlClient
Public Class Form1
    Private cs As New SqlConnection(connectionstring)
    Private ds As New DataSet
    private da as SqlDataAdapter("select * from contacts_tbl",cs) 


    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        cs.Open()
        MsgBox(cs.State.ToString)
        cs.Close()
    End Sub

End Class
And i understood what it does.... in the same can any one help me out to learn the DB in SQL server and the Dataset in vb.net... Well i m very keen to learn it.... can u ppl show some ways for this.... And another one thing i hav SQL server 2008 and vb.net 2005... If u ppl have some sample programs then plz give me.... or wht ways u know suggest me...

Regards
Prity