Query Performance
A slow database can cripple even the best application. Here's how to optimize.
Index Strategically
Indexes speed up reads but slow down writes. Index columns used in WHERE, JOIN, and ORDER BY clauses.
CREATE INDEX idx_users_email ON users(email);Analyze Query Plans
Use EXPLAIN to understand how your database executes queries. Optimize based on data.
Avoid N+1 Queries
Load related data in a single query instead of multiple round trips.
Connection Pooling
Reuse database connections instead of creating new ones for each request.