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Query Processing and Optimization Overview by ArunPratapSingh is a document available to read on EtoBox.
What is Query Processing and Optimization Overview about?
The document discusses query processing and optimization in databases. It describes the basic steps in query processing as parsing and translation, optimization, and evaluation. Query optimization aims to determine the most efficient execution plan by considering costs and selecting the lowest cost plan. The document outlines the stages of query optimization as parsing, decomposition, normalization, semantic analysis, simplification, reconstruction and cost-based plan selection.
- Author
- ArunPratapSingh
- Language
- EN