In recent MySQL versions, there have been significant improvements regarding views with aggregation, particularly with the introduction of the WITH ROLLUP and GROUP BY enhancements that support better performance and flexibility. These features allow developers to create more complex aggregated views that can simplify reporting and analytics tasks.
This example demonstrates how to create a view with aggregation using the GROUP BY
clause along with WITH ROLLUP
:
CREATE VIEW sales_summary AS
SELECT
product_id,
SUM(sales_amount) AS total_sales,
COUNT(*) AS total_transactions
FROM
sales
GROUP BY
product_id WITH ROLLUP;
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