Fundamentals of database systems (2nd ed.)
Fundamentals of database systems (2nd ed.)
Evaluation of signature files as set access facilities in OODBs
SIGMOD '93 Proceedings of the 1993 ACM SIGMOD international conference on Management of data
Query Optimization in Database Systems
ACM Computing Surveys (CSUR)
Access path selection in a relational database management system
SIGMOD '79 Proceedings of the 1979 ACM SIGMOD international conference on Management of data
Managing Meta Objects for Design of Warehouse Data
DaWaK '99 Proceedings of the First International Conference on Data Warehousing and Knowledge Discovery
Optimal implementation of conjunctive queries in relational data bases
STOC '77 Proceedings of the ninth annual ACM symposium on Theory of computing
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In this investigation, we discuss optimization issues of meta-queries for databases. Since the traditional techniques cannot be applied to meta-queries, we propose a new technique of cost-based optimization without evaluation of meta-objects. For this purpose, we introduce signature techniques and extend database schemes.