A comparative analysis of methodologies for database schema integration
ACM Computing Surveys (CSUR)
Superviews: Virtual Integration of Multiple Databases
IEEE Transactions on Software Engineering
Data Integration in Distributed Databases
IEEE Transactions on Software Engineering
A localized approach to distributed query processing
EDBT '90 Proceedings of the 2nd international conference on extending database technology: Advances in Database Technology
Introduction to object-oriented databases
Introduction to object-oriented databases
On resolving schematic heterogeneity in multidatabase systems
Distributed and Parallel Databases
Answering heterogeneous database queries with degrees of uncertainty
Distributed and Parallel Databases
Applications of object-oriented technology to the integration of heterogeneous database systems
Distributed and Parallel Databases
Identifying object isomerism in multidatabase systems
Distributed and Parallel Databases
Schema integration and query processing for multiple object databases
Integrated Computer-Aided Engineering - Special issue: multidatabase and interoperable systems
Outerjoin optimization in multidatabase systems
DPDS '90 Proceedings of the second international symposium on Databases in parallel and distributed systems
Extending the database relational model to capture more meaning
ACM Transactions on Database Systems (TODS)
IEEE Transactions on Knowledge and Data Engineering
System-Guided View Integration for Object-Oriented Databases
IEEE Transactions on Knowledge and Data Engineering
A Graph Theoretical Approach to Determine a Join Reducer Sequence in Distributed Query Processing
IEEE Transactions on Knowledge and Data Engineering
View Integration: A Step Forward in Solving Structural Conflicts
IEEE Transactions on Knowledge and Data Engineering
A Methodology for Integration of Heterogeneous Databases
IEEE Transactions on Knowledge and Data Engineering
A Parallel Execution Method for Minimizing Distributed Query Response Time
IEEE Transactions on Parallel and Distributed Systems
An Approach to Schema Integration and Query Formulation in Federated Database Systems
Proceedings of the Third International Conference on Data Engineering
A Tool for Integrating Conceptual Schemas and User Views
Proceedings of the Fourth International Conference on Data Engineering
Multi-User View Integration System (MUVIS): An Expert System for View Integration
Proceedings of the Sixth International Conference on Data Engineering
Applying Signatures for Forward Traversal Query Processing in Object-Oriented Databases
Proceedings of the Tenth International Conference on Data Engineering
VLDB '91 Proceedings of the 17th International Conference on Very Large Data Bases
Multiview: A Methodology for Supporting Multiple Views in Object-Oriented Databases
VLDB '92 Proceedings of the 18th International Conference on Very Large Data Bases
Integration of Heterogeneous Object Schemas
ER '93 Proceedings of the 12th International Conference on the Entity-Relationship Approach: Entity-Relationship Approach
So Far (Schematically) yet So Near (Semantically)
Proceedings of the IFIP WG 2.6 Database Semantics Conference on Interoperable Database Systems (DS-5)
A mapping strategy for querying multiple object databases with a global object schema
RIDE '95 Proceedings of the 5th International Workshop on Research Issues in Data Engineering-Distributed Object Management (RIDE-DOM'95)
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Within integrated multiple object databases, missing data occurs due to the missing attribute conflict as well as the existence of null values. A set of algorithms is provided in this paper to process the predicates of global queries with missing data. For providing more informative answers to users, the maybe results due to missing data are presented in addition to the certain results. The local maybe results may become certain results via the concept of object isomerism. One algorithm is designed based on the centralized approach in which data are forwarded to the same site for integration and processing. Furthermore, for reducing response time, the localized approaches evaluate the predicates within distinct component databases in parallel. The object signature is also applied in the design to further reduce the data transfer. These algorithms are compared and discussed according to the simulation results of both the total execution and response times. Alternately, the global schema may contain multivalued attributes with values derived from attribute values in different component databases. Hence, the proposed approaches are also extended to process the global queries involving this kind of multivalued attribute