Database Systems (TODS)


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ACM Transactions on Database Systems (TODS), Volume 25 Issue 4, Dec. 2000

Temporal statement modifiers
Michael H. Böhlen, Christian S. Jensen, Richard Thomas Snodgrass
Pages: 407-456
DOI: 10.1145/377674.377665
A wide range of database applications manage time-varying data. Many temporal query languages have been proposed, each one the result of many carefully made yet subtly interacting design decisions. In this article we advocate a different...

Optimizing object queries using an effective calculus
Leonidas Fegaras, David Maier
Pages: 457-516
DOI: 10.1145/377674.377676
Object-oriented databases (OODBs) provide powerful data abstractions and modeling facilities, but they generally lack a suitable framework for query processing and optimization. The development of an effective query optimizer is one of the key...

Cache investment: integrating query optimization and distributed data placement
Donald Kossmann, Michael J. Franklin, Gerhard Drasch, Wig Ag
Pages: 517-558
DOI: 10.1145/377674.377677
Emerging distributed query-processing systems support flexible execution strategies in which each query can be run using a combination of data shipping and query shipping. As in any distributed environment, these systems can obtain tremendous...