Optimize database queries to cut egress costs and boost speed

PlanetScale engineer Simeon Griggs explains how reducing database egress—data sent over the public internet—can lower cloud bills and improve application performance. Common culprits include fetching too much data too often, such as selecting entire JSONB columns when only a few fields are needed. The post offers practical SQL tips like using `SELECT` with specific columns and adding `LIMIT` clauses to minimize egress.