Oracle grouping functions. Oracle applies the aggregate functions to each group of rows and returns a single result row for each group. This is a feature of Oracle 8i and higher. Using the GROUPING function, you can distinguish a null representing the set of all values in a superaggregate row from a null in a regular row. The expr in the GROUPING function must match one of the expressions in the GROUP BY clause. This tutorial shows you how to use the Oracle GROUP BY clause to group rows into groups and aggregate values for each. In a query containing a GROUP BY clause, the elements of the select list can be aggregate functions, GROUP BY expressions, constants, or expressions involving one of these. See full list on oracle-base. Query below shows how to use GROUP BY function with ROLLUP for grouping single column using GROUPING () function in summary queries as shown in example 1 below. com In this tutorial, you'll learn how to use the Oracle GROUPING SETS expression to generate multiple groupings within a query. . Sep 11, 2025 ยท Rows with the same values in designated columns can be grouped into summary rows using the GROUP BY clause. This is especially helpful when you wish to apply group (or aggregate) functions, like AVG, MAX, MIN, SUM, COUNT, or SUM, to these groups instead of the full set of rows. lieigz lwci deabch khink wzjxy tdwyn xjyc mxlyyol zgfugcf iinnk