Processing OODB Queries by O-Algebra.

Jie Lin, Z. Meral Özsoyoglu: Processing OODB Queries by O-Algebra. CIKM 1996: 134-142

@inproceedings{DBLP:conf/cikm/LinO96,
  author    = {Jie Lin and
               Z. Meral {\"O}zsoyoglu},
  title     = {Processing OODB Queries by O-Algebra},
  booktitle = {CIKM '96, Proceedings of the Fifth International Conference on
               Information and Knowledge Management, November 12 - 16, 1996,
               Rockville, Maryland, USA},
  publisher = {ACM},
  year      = {1996},
  pages     = {134-142},
  ee        = {db/conf/cikm/LinO96.html, http://doi.acm.org/10.1145/238355.238470},
  crossref  = {DBLP:conf/cikm/96},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

BibTeX

Abstract

O-Algebra is an object algebra designed for processing Object-Oriented Database (OODB) queries. We present the concept of internal type objects, which are uniform and represent the front-end objects. O-Algebra is an algebra whose operands are collections of internal objects. Due to uniform operands and simple operators defined in O-Algebra, a small yet powerful set of O-Algebra laws can be obtained, which is important for query optimization by algebraic rewriting. After presenting O-Algebra, we introduce an approach to transform OQL queries to O-Algebra queries. Since O-Algebra operations do not have complex arguments, the nested queries of OQL are reduced by a general method after they are transformed to O-Algebra queries. Compared to other approaches of reducing nested queries, this approach is more general because it is not restricted by the patterns of nested queries. The approach is being implemented.

Copyright © 1996 by the ACM, Inc., used by permission. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation.

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BibTeX

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CIKM '96, Proceedings of the Fifth International Conference on Information and Knowledge Management, November 12 - 16, 1996, Rockville, Maryland, USA. ACM 1996
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Referenced by

Sibel Adali, Maria Luisa Sapino, V. S. Subrahmanian: A Multimedia Presentation Algebra. SIGMOD Conference 1999: 121-132
Lei Sheng, Z. Meral Özsoyoglu, Gultekin Özsoyoglu: A Graph Query Language and Its Query Processing. ICDE 1999: 572-581
Leonidas Fegaras: Query Unnesting in Object-Oriented Databases. SIGMOD Conference 1998: 49-60

BibTeX

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