Dim Db As New SqlConnection()
Dim SqlCmd as New SqlCommand()

db.ConnectionString="Data Source=COMPUTERONE\SQLEXPRESS;Initial Catalog=ProvaMax;Integrated Security=SSPI;"
Db.Open()

Sqlcmd.Connection = db
Sqlcmd.CommandText = "INSERT INTO Condomini (Nome, Cognome, Telefono) Values('Ciccio', 'Ciuccio', 333333)"
Sqlcmd.CommandType = CommandType.Text
Sqlcmd.ExecuteNonQuery()

Sqlcmd.Close()
Db.Connection.Close()