我想在我的数据库中增加一列，我该怎么做？

if result[0] is True and result[1] != "":  # a win
               your_details["score"] = your_details["score"] + 1
               lbl_status["text"] = "Game over, You won! You(" + str(your_details["score"]) + ") - " \
                                                                                              "" + opponent_details[
                                        "name"] + "(" + str(opponent_details["score"]) + ")"

               req = 'UPDATE INTO users("nb_win") VALUES("nb_win + 1")'
               infos = your_details["score"]
               print(infos)

               try:
                   cursor.execute(req, infos)
                   db_connection.commit()

               except mysql.Error as err:
                   print(err)

def connect():
    global your_details
    if len(ent_name.get()) < 1:
        tk.messagebox.showerror(title="ERROR!!!", message="You MUST enter your first name <e.g. John>")
    else:
        your_details["name"] = ent_name.get()
        print(ent_name.get())
        connect_to_server(ent_name.get())

        req = 'INSERT INTO users(user_name) VALUES("'+ ent_name.get()+'")'
        infos = ent_name

如果有人能帮我，谢谢你的帮助！