Group BY with having and order by in SQL SERVER | Part 6 #sqlserver #coding #dataqueries

Group BY with having and order by in SQL SERVER | Part 8 #sqlserver #coding #dataqueries

In SQL Server, the GROUP BY clause is used to group rows that have the same values in specified columns into summary rows. The HAVING clause is used to filter the grouped results based on aggregated values, and the ORDER BY clause is used to sort the result set based on specified columns. Here’s the basic structure:

Here’s a breakdown of the components:

SELECT: Specifies the columns you want to retrieve in the result set. You can also include aggregate functions (like SUM, COUNT, AVG, etc.) to perform calculations on grouped data.

FROM: Specifies the table from which you’re retrieving data.

GROUP BY: Specifies the columns by which you want to group the data. These columns should be included in the SELECT clause as well (unless they are used with aggregate functions).

HAVING: Filters the grouped results based on conditions involving aggregated values. It’s similar to the WHERE clause but operates on aggregated data.

ORDER BY: Sorts the final result set based on specified columns. You can use ASC (ascending) or DESC (descending) to control the sort order.

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