10. Query Processing & Optimization | CSE 3103 - Database Theory

Ever wondered how databases execute your SQL queries efficiently? This video explains the complete query processing pipeline! Learn about the three main steps: parsing and translation (SQL to relational algebra), optimization (finding the most efficient execution plan), and evaluation plan generation. Understand how query optimizers consider indexes, join orders, and access paths to minimize execution time.

🎯 Topics Covered:

Query Processing Steps
Parsing & Translation
SQL to Relational Algebra Conversion
Query Optimization Techniques
Cost Estimation
Execution Plan Generation
Index Usage in Queries

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