Скачать или смотреть Understanding Index Cardinality in MySQL – Optimize Your Database Queries

In this video, we dive into the concept of index cardinality in MySQL and how it plays a critical role in optimizing query performance. Learn the difference between high and low cardinality, how MySQL uses cardinality to optimize queries, and when to consider index cardinality in your database design. We’ll also cover how MySQL estimates cardinality and how it affects composite indexes.

Topics Covered:

• What is index cardinality?
• High vs low cardinality.
• How cardinality affects query performance.
• Estimation and recalculation of index cardinality in MySQL.
• Best practices for managing index cardinality.

This video is ideal for database administrators and developers looking to improve query efficiency.