Blogga qaytish
5-yanvar, 20246 min
PostgreSQL Query Optimization: 10 ta muhim maslahat
Database performance ni yaxshilash uchun amaliy maslahatlar va real-world misollar.
PostgreSQL Query Optimization
Database performance - backend developer uchun eng muhim mavzulardan biri.
1. EXPLAIN ANALYZE ishlatish
``sql
EXPLAIN ANALYZE SELECT * FROM users WHERE email = 'test@example.com';
`
2. To'g'ri Index yaratish
`sql
CREATE INDEX idx_users_email ON users(email);
CREATE INDEX idx_orders_user_date ON orders(user_id, created_at);
`
3. N+1 Problem dan qochish
`python
Yomon
for user in users:
orders = get_orders(user.id)
Yaxshi
orders = get_orders_for_users([u.id for u in users])
``
Xulosa
Database optimization - iterativ jarayon. Monitoring va profiling muhim.
// Bu maqola foydali bo'ldi? Ulashing!