sample module in vb.net

-- module
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.OleDb
'Public con As New SqlConnection("Data Source=SIPPVMNAV01;Initial
Catalog=zTech_Temp_Pen_20066;Integrated Security=True")
Public con As New SqlConnection("Data Source=SIPPVMNAV01;Initial Catalog=zTech_Temp_Pen_20066; User ID=sa; Password=password123$")
Public cmd As New SqlCommand
Public da As SqlDataAdapter
Public ds As DataSet
Public sqlReader As SqlClient.SqlDataReader
Public dt As New DataTable