Improving SQL Query Readability With Common Table Expressions (CTE)

A Common Table Expression (CTE) in SQL is a powerful tool that allows you to define a temporary result set that can be referenced within a SELECT, INSERT, UPDATE, or DELETE statement. CTEs improve the readability and organization of complex queries by allowing you to break them into simpler, more manageable parts.
Syntax of CTE
WITH cte_name AS (
    -- CTE query
    SELECT column1, column2, ...
    FROM table_name
    WHERE condition
)
-- Main query using the CTE
SELECT *
FROM cte_name
WHERE condition;
Key Features of CTEs

Readability: CTEs help improve the readability of SQL queries, especi...