Sql Programming Tutorials, Guides & Best Practices

SELECT sale_id, employee_id, amount,
       LEAD(amount, 1) OVER (ORDER BY sale_id) AS next_sale
FROM sales;

Advanced SQL techniques like subqueries, unions, and window functions allow you to solve complex data challenges and gain deeper insights. Practice these concepts on real-world datasets to strengthen your SQL skills and become proficient in handling advanced query scenarios.