Скачать или смотреть How to Generate Explain Plans for SQL Queries

Learn how to generate and analyze explain plans in PostgreSQL to optimize your SQL query performance. This comprehensive tutorial walks you through using PG Admin and psql to create and interpret explain plans. Explore techniques for analyzing query execution plans, including EXPLAIN and EXPLAIN ANALYZE, and understand their importance in performance tuning. Perfect for database developers and SQL enthusiasts looking to master query optimization.

Key Topics:
✔️ What is an explain plan in PostgreSQL?
✔️ How to generate explain plans using PG Admin and psql
✔️ Difference between EXPLAIN and EXPLAIN ANALYZE
✔️ Understanding the tree structure in query plans
✔️ Query optimization techniques using explain plans

Timestamps
0:00 - Introduction to Explain Plans
0:20 - Using EXPLAIN Command in psql
0:50 - Generating Explain Plans for Joins and Aggregations
2:00 - Viewing Explain Plans in PG Admin (Graphical & Textual)
4:00 - Difference Between EXPLAIN and EXPLAIN ANALYZE
5:00 - Best Practices for Generating Explain Plans

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