Optimizing Database Queries for Performance

Speed Up Your Database

Slow queries can cripple your application. Here's how to identify and fix them.

1. Use EXPLAIN to Analyze Queries

EXPLAIN SELECT * FROM users WHERE email = "test@example.com";

2. Add Proper Indexes

CREATE INDEX idx_users_email ON users(email);

3. Avoid SELECT *

Only select the columns you need to reduce data transfer.

4. Use Query Caching

Cache frequently accessed data to reduce database load.

These optimizations can turn a 10-second query into a 10-millisecond one!