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Common Table Expression (CTE) In SQL Server






Purpose





Syntax


WITH <CTE_Name> AS (
<Select query>
)



Example




Picture showing the data in the Product table




Picture showing the data in the Orders table




;WITH sales AS (
    SELECT product_id, SUM(quantity * price) AS revenue
    FROM orders
    GROUP BY product_id
)
SELECT product_id, revenue
FROM sales
WHERE revenue > 20;



Output


Picture showing the output of the Common Table Expression in SQL server





Posted By  -  Karan Gupta
 
Posted On  -  Friday, April 7, 2023

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