Generating and Optimising Views from Both as View Data Integration Rules
نویسندگان
چکیده
This paper describes the generation and logical optimisation of views in the AutoMed heterogeneous data integration framework, which is based on the use of reversible schema transformation sequences called both as view (BAV) rules. We show how views can be generated from such sequences, for global as view (GAV), local as view (LAV) and GLAV query processing. We also present techniques for optimising these generated views, firstly by optimising the transformation sequences, and secondly by optimising the view definitions generated from them.
منابع مشابه
View Generation and Optimisation in the AutoMed Data Integration Framework
This paper describes view generation and view optimisation in the AutoMed heterogeneous data integration framework. In AutoMed, schema integration is based on the use of reversible schema transformation sequences. We show how views can be generated from such sequences, for global-as-view (GAV), local-as-view (LAV) and GLAV query processing. We also present techniques for optimising these genera...
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