Session system in bubble - database and UI

Hi everyone,

I’m a new bubble developper and I would like to how we can create the equivalent of session system in PHP, but on bubble.is. In fact i wanna know how we can recover all data proper to a user when and he log in to his account ? Moreover, i wanna know how we can make a change proper to a user’s account and not to the other ? For exemple, when the user 1 make an update in his account, this change will only his account and not change the data of the user 2. The user 2 won’t access to data changed by the user 1 because it affect only the user 1 's account. So when the user 1 log in to his account, he will find all his proper data (default data and data changed) while when the user 2 log in to his account he can’t find the data changed by the user 1 because it is supposed to be proper to the user 1 account.

So, if you could help me, it would be nice from you. Thanks !

Regards !

Yacine TAZDAIT