the structure python with cisco devices commands to store in database(mysqlite3)

I have wrritten a function that can get cisco commands from database.

now i can reveive commands in this format

enable
configure terminal
interface fa(fanumber)/(fanumber)
ip adress (ip) (subnet mask) 
no shutdown

As you know ,in the ip adress (ip) (subnet mask) we need to input two parameters into (ip) (subnet mask) Moreover, sometime i need to input only one parameter such as: (this is the result of my function.) enable configure terminal vlan (VLAN IDs) name (vlan name)

In these commands , I need to input one parameter into vlan (VLAN IDs) and one parameter into name (vlan name)

But now I cant find a method to write a good function to solve my problem. I would like to provide my function and database structure and hope someone could help me.

this is my function:

 def readciscodevice(function, device):
            conn = sqlite3.connect('server.db')
            cur = conn.cursor()
            if device == "switch":
                    cur.execute(
                            "SELECT DISTINCT command FROM switch WHERE   function =? or function='configure terminal' or function='enable'  ORDER BY key ASC",
                            (function,))
                    read = cur.fetchall()
                    return read
            elif device == "router":
                    cur.execute(
                            "SELECT DISTINCT command FROM router WHERE   function =? or function='configure terminal' or function='enable'  ORDER BY key ASC",
                            (function,))
                    read = cur.fetchall()
                    return read;
            elif device == "showcommand":
                cur.execute(
                        "SELECT DISTINCT command FROM showcommand WHERE   function =? or  function='enable'  ORDER BY key ASC",
                        (function,))
                read = cur.fetchall()
                return read;



    a = input("function:")
    b = input("device:")
    for result in readciscodevice(a,b):
            print(result[0])

my database structure are keynumber(the number of my field), command(the full command that i get from cisco devices) and function (the function is to describe the set of commands that I combine, like)

Should i add a field like parameter to calulate how many parameter in my command?

I hope that I can find a way to present my answer like this:

    enable
    configure terminal
    vlan 1
    name VLAN1

and

    enable
    configure terminal
    interface fa 0/1
    ip adress 192.168.0.1 255.255.255.0
    no shutdown