cte_for_complex_queries

🔗 Use CTEs to Simplify Complex Queries

Common Table Expressions (CTEs) help break down complex SQL logic into manageable parts, improving readability and maintainability. Use WITH clauses to define intermediate result sets and reference them in your main query.

WITH monthly_sales AS (
  SELECT seller_id, SUM(amount) AS total
  FROM sales
  WHERE sale_date >= '2023-01-01'
  GROUP BY seller_id
)
SELECT s.name, m.total
FROM sellers s
JOIN monthly_sales m ON s.id = m.seller_id
ORDER BY m.total DESC;