charalam@grad1.cis.upenn.edu (06/15/90)
I have a request for all you net-users. I am working on a research project and my topic is: Schema integration in distributed databases. What I need is some sample schemas of databases that can be somehow integrated together. Let me give an example of what I need, in order to make things clear. The schemas I am looking for, could be the schemas of two (or more) different departments in an organization. Initially each of those departments might have developed it's own schema for its database independently from the other departments. By merging the schemas, one can create a global view for all the databases and thus can express global queries against this global view. I am looking into some merging algorithms and I would like to have some ``real-life'' schemas of databases. I am not looking for some toy examples that you can find in any database book, but again, not something with 200 entities and 400 attributes. I would welcome anything with at least 10-15 entities. The designs I need do not have to be the actual schemas of your organization (if you wish to send those I would really appreciate it) put it should be something ``realistic''. I would gladly accept such schemas in any data model (entity-relationship, functional, relational or whatever). Maybe something you've set up on a project, or if you are also doing database research, maybe some example-schemas you might have set up for testing or demonstration, etc. etc. You can mail your designs to: Georghios Charalambous 200 South 33rd Street Department of Computer and Information Science University of Pennsylvania Philadelphia, PA 19104-6391 or e-mail them to: charalam@grad1.cis.upenn.edu Thank you in advance, Georghios Charalambous. PS. I would also welcome any references on the subject, preferably recent ones (the last 3-4 years).