imo the main difference between databases is some databases have an address for data and some don't, meaning, when you want to go update some value, some databa

imo the main difference between databases is some databases have an address for data and some don't, meaning, when you want to go update some value, some databases say, ok, the data is there, go update it, other databases say, i don't care where it was written before, just append it here. The later has huge performance advantages if you are willing to live with the design constraints that puts on you.