Query Processing and Optimization
Query Processing and Optimization
Query Processing and Optimization
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Overview of <strong>Query</strong> <strong>Processing</strong><br />
1. Parsing <strong>and</strong> translation<br />
2. <strong>Optimization</strong><br />
3. Evaluation<br />
4. Execution<br />
<strong>Query</strong> in high-level language<br />
Scanning, Parsing, <strong>and</strong><br />
Semantic Analysis<br />
<strong>Query</strong> <strong>Optimization</strong><br />
Intermediate form of query<br />
Execution Plan<br />
<strong>Query</strong> Code Generator<br />
Runtime Database<br />
Processor<br />
Code to execute the query<br />
Result of query<br />
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