How to Add Indexes to Boost SQL Performance

In this tutorial, we cover key guidelines for adding indexes to SQL tables to improve the performance of your queries. Learn the best practices for optimizing SELECT queries, particularly in scenarios where you need to join tables like orders and order_items. We discuss the importance of foreign key relationships, when to add indexes, and how indexes can speed up your query execution time while also considering the impact on write operations.

Key Topics Covered:
✔️ How to add indexes to improve SQL query performance
✔️ Best practices for foreign key indexes
✔️ Understanding the impact of indexes on query speed
✔️ When to use indexes and avoid unnecessary indexing
✔️ Optimizing JOIN queries for faster performance

Timestamps
* 0:00 - Introduction to SQL Indexing and Performance
* 0:40 - Indexing foreign keys to improve query performance
* 1:20 - The importance of indexing in one-to-many relationships
* 1:40 - Common queries that benefit from indexing
* 2:00 - When not to add indexes and the risks of too many indexes
* 2:30 - Guidelines for creating indexes with caution
* 3:00 - Performance overhead with excessive indexes
* 3:30 - Interpreting explain plans after adding indexes

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[ajproductions]

What course is this, and how can I join ? Thanks