SQL Optimization

✅ 1. <span>EXPLAIN FORMAT=JSON</span> —— In-depth Analysis of Execution Plans 🔍 Purpose Provides more detailed execution information than the standard <span>EXPLAIN</span>, including: Cost of accessing each table (<span>cost_info</span>) Details on index usage Whether temporary tables or sorting are used JOIN order and driving strategy 📌 Usage EXPLAIN FORMAT=JSON SELECT u.username, v.n_time FROM abc v JOIN … Read more