how to retrive the 1st date of the specific user of last login

using (SqlConnection con = new SqlConnection(strConnect))
    {
    con.Open();
    using (SqlCommand cmd = new SqlCommand("SELECT TOP 1 loginDate FROM myTable WHERE useID = @ID ORDER BY loginDate DESC", con))
        {
        cmd.Parameters.AddWithValue("@ID", userId);
        DateTime lastLogin = (DateTime) cmd.ExecuteScalar();
        }
    }