An Algebraic Transformation Framework for Multidatabase Queries

• Main Authors: LIM, Ee Peng, SRIVASTAVA, Jaideep, HWANG, San-Yih
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 1995
• Subjects: multidatabase query; integration operation; algebraic transformation; constrained query tree; outerjoin graph; Databases and Information Systems; Numerical Analysis and Scientific Computing
• Online Access: https://ink.library.smu.edu.sg/sis_research/13; https://doi.org/10.1007/BF01418060
• Institution: Singapore Management University

Existence of semantic conflicts between component databases severely impacts query processing in a multidatabase system. In this paper, we describe two types of semantic conflicts that have to be dealt with in the integration of databases modeling information about related sets of real-world entitie...