Database Systems (TODS)


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ACM Transactions on Database Systems (TODS), Volume 24 Issue 1, March 1999

Broadcast protocols to support efficient retrieval from databases by mobile users
Anindya Datta, Debra E. VanderMeer, Aslihan Celik, Vijay Kumar
Pages: 1-79
DOI: 10.1145/310701.310710
Mobile computing has the potential for managing information globally. Data management issues in mobile computing have received some attention in recent times, and the design of adaptive braodcast protocols has been posed as an...

Database design for incomplete relations
Mark Levene, George Loizou
Pages: 80-126
DOI: 10.1145/310701.310712
Although there has been a vast amount of research in the area of relational database design, to our knowledge, there has been very little work that considers whether this theory is still valid when relations in the database may be incomplete....

Temporal FDs on complex objects
Jef Wijsen
Pages: 127-176
DOI: 10.1145/310701.310715
Temporal functional dependencies (TFD) are defined for temporal databases that include object identity. It is argued that object identity can overcome certain semantic diffuculties with existing temporal relational data models....