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Query Processing

Query Processing. Outline. Overview Measures of Query Cost Selection Operation Sorting Join Operation Duplicate elimination Projection Aggregation Set operations Evaluation of Expressions. Basic Steps in Query Processing. Basic Steps in Query Processing. Parsing and translation

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713 views • 48 slides

Query Processing

Query Processing. Chapter 13: Query Processing. Overview Measures of Query Cost Selection Operation Sorting Join Operation Other Operations Evaluation of Expressions. Basic Steps in Query Processing. Basic Steps in Query Processing. Parsing and translation

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562 views • 35 slides

Query Processing

Query Processing. Query Processing. Overview Measures of Query Cost Selection Operation Sorting Join Operation Other Operations Evaluation of Expressions. Example DB. Basic Steps in Query Processing. 1. Parsing and translation 2. Optimization 3. Evaluation.

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519 views • 32 slides

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Input buffer page - PowerPoint PPT Presentation

Query Processing

Query Processing

Query Processing