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Answering Tree Pattern Queries Using Views

Answering Tree Pattern Queries Using Views. Laks V.S. Lakshmanan , Hui (Wendy) Wang , and Zheng (Jessica) Zhao University of British Columbia Vancouver, BC Amazon.com. Outline. Motivation Problems Studied Without schema With schema Recursive schemas Related Work

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539 views • 39 slides

Local as View: First steps

Local as View: First steps. Introduction and an example Rewriting queries using views The Information Manifold system. Introduction and an example. LAV : local as view The sources are modeled as views, typically conjunctive, of the global (virtual) schema (why conjunctive?)

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444 views • 30 slides

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Contained rewriting - PowerPoint PPT Presentation

Answering Tree Pattern Queries Using Views

Local as View: First steps