Database Performance SQL

Database Optimization Techniques

February 10, 2024 | 25 min read
Database Optimization Techniques

Database Optimization Techniques

60%
Average performance improvement
40%
Resource utilization reduction

Indexing Best Practices

B-Tree Indexes


-- Create an index
CREATE INDEX idx_last_name ON users(last_name);

-- Composite index
CREATE INDEX idx_name_email ON users(last_name, email);

Full-Text Search


-- Create fulltext index
CREATE FULLTEXT INDEX idx_content 
ON articles(title, content);

Query Optimization

Before Optimization


SELECT * 
FROM orders o 
JOIN users u ON u.id = o.user_id 
WHERE YEAR(created_at) = 2024;

After Optimization


SELECT o.id, o.total, u.name 
FROM orders o 
JOIN users u ON u.id = o.user_id 
WHERE created_at >= '2024-01-01' 
  AND created_at < '2025-01-01';
Author

Milan Salvi

Machine Learning Engineer & Data Scientist