8. Working with RBF Report Specifications : Layout and Create Operations--Create New Report Components : Aggregates : Guidelines for Creating an Aggregate
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Guidelines for Creating an Aggregate
When creating aggregates, you:
Must create an aggregate in a footer (break, page, or report)
Can create an aggregate on any column (the column does not have to be a sort column)
Can create more than one aggregate in a footer and more than one type of aggregate for a particular column
For example, in a table containing the columns Project, Employee, and Salary, you can create a break footer for the Project column (Project_Break_Footer). Then, you can create Average and Sum aggregates (non‑cumulative) for the Salary column in the Project_break_footer. This instructs RBF to:
Break each time it finds a new value in the Project column
Calculate the total salary and average salary cost of each project
After creating an aggregate, you can edit it in the same way you edit columns. You can:
Change its display format
Edit it or the associated headings
Move it to another footer section
Delete the aggregate