Concurrency and Errorcorrection in Informix and Dbase

[d801]

We are a group of students, working on a project about working
databaseystems. Our project is about concurrency- & recoverysystems and we
would like to know a little more about Informix and Dbase, and their
functionallity on these subjects.

Does anyone out here know anything about these subjects, please drop us a
note.
Also if you have used the databasesystems or know its details, write us...

Regards
Martin Carlsberg