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Performance Tuning

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EXPLAIN & Query Analysis

Using EXPLAIN for Query Optimization

Using EXPLAINEXPLAIN SELECT * FROM employees WHERE department_id = 2;Key columns include: type, possible_keys, key, rows...

Sai Sree Ram Gundepudi Updated Jul 26, 2025 0 views
Index Optimization

Optimizing Indexes for Fast Queries

Composite IndexCREATE INDEX idx_emp_dept ON employees(department_id, salary);Use EXPLAIN to check if your query uses the...

Sai Sree Ram Gundepudi Updated Jul 26, 2025 0 views