A constraint expresses a relationship among one or more variables. Constraints are very useful in the development of collaborative applications, such as collaborative CAD and CASE ...
Kai Lin, David Chen, Chengzheng Sun, R. Geoff Drom...
A data warehouse collects and integrates data from multiple, autonomous, heterogeneous, sources. The warehouse e ectively maintains one or more materialized views over the source ...
Janet L. Wiener, Himanshu Gupta, Wilburt Labio, Yu...
A customer reported problem (or Trouble Ticket) in software maintenance is typically solved by one or more maintenance engineers. The decision of allocating the ticket to one or m...
Previous research on materialized views has primarily been in the context of flat relational databases--materialized views defined in terms of one or more flat relations. This pape...
Akira Kawaguchi, Daniel F. Lieuwen, Inderpal Singh...
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...