Procedures in Object-Oriented Query Languages
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
Extending a View Mechanism to Support Schema Evolution in Federated Database Systems
DEXA '97 Proceedings of the 8th International Conference on Database and Expert Systems Applications
Answering queries using views: A survey
The VLDB Journal — The International Journal on Very Large Data Bases
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In this paper we present a novel infrastructure for data analysis based on the mechanism of updatable views. The views are used in two ways: as wrappers of local servers, which allow one to adopt local schemata to warehousing requirements, and as a facility for data integration and transformation to a federated canonical data model. Such updatable views present virtual data to the clients, but they themselves are also objects that can have methods and other features. The advantage of our approach is a simple architecture and a user-friendly query language for definition of views and for writing applications. Thus our approach can compete with Web Services, CORBA and other middleware technologies in terms of universality, flexibility and maintainability. This approach is based on the Stack-Based Approach to query languages, in which the query language is treated as a kind of programming languages.