Copyright 1998 INIST-CNRS CC BY 4.0 Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Computer science; theoretical automation; systems
FRANCIS
Accession Number:
edscal.2289515
Database:
PASCAL Archive
Weitere Informationen
Horizontal partitioning (HP) technique is a logical database design technique first developed for distributed relational (record structured) databases. Though the main objective of HP is to reduce irrelevant data access, there has been very little work done in quantifying this by means of a cost model, and developing algorithms which derive the horizontal partitioning schemes. In this paper, we develop a cost model for query processing in object oriented databases (OODBs) for both unpartitioned and horizontally partitioned object oriented databases. The problem of coming up optimal HP scheme is NP-complete. Therefore, we present and evaluate two algorithms for coming up with optimal (based on exhaustive search) and/or near optimal (based on heuristics) HP schemes.