Database connetivity in vb.net with sql server2005

Dim connectionString As String = "Data Source=.;Initial Catalog=pubs;Integrated Security=True"

using System.Data.SqlClient;



string dbconn= configurationManager.connectionstrings["Db"].connectionstring

sqlconnection conn= new sqlconnection(dbconn)

conn.open()

sqlcommand cmd=new sqlcommand("Query",conn)

cmd.executeNonquery()
conn.close()


Hope u can understand now.....