Is there a lightweight (in size and memory usage), portable (that i can copy and paste it to another computer without reconfiguration, or rsync it with ease), cross-platform (that runs on windows and linux, at least at data level), client-server (because there would be more than one user write at the same time, so i wont use sqlite or any other embedded database) database?
what are my options?
i don't care if it's sql or nosql, i don't care about the security too..