Group by ROLLUP in SQL Server
Did you know that there is a simple way to add roll up sub totals in SQL Server?
SQL ROLLUP is an extension of the GROUP BY clause in SQL, providing a way to generate subtotals and grand totals for multiple dimensions within a dataset.
It enables analysts to explore data at different levels of granularity, making it easier to identify patterns, trends, and relationships.
This short guide shows you how it works
and our blog post talks about some wider use cases
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