Discussion on: What is really the difference between Cookie, Session and Tokens that nobody is talking about ?.

No man, what I'm talking about is the context of the OP: cookies vs sessions vs tokens, used as means of exchanging information that stores information about user activity. These terms were used under their proper definition (including session, as a server-provided ephemeral storage).
Yeah, sure, you can create your custom system, you can create your custom anything but what I was talking is what you can use to integrate within the sever provided framework (which already manages how clients are identified and whatnot). That's way beyond the topic of using what's provided. My point was merely to correct a statement in the OP which implied that databases are somehow part of the session mechanism (they're not). The session mechanism as per OP is what the server provides you. You could create your own, but that's not the same thing.
Also, the mere fact that something exists doesn't mean it's usable (session id in URL is as exposed as you can get) so I wouldn't consider as something that's in your toolbox.