In the previous chapters, you learned how to control the
detailed information on a report by sorting and selecting records
and by calculating new values that do not exist in the data source
from records in the data source. To help you and others interpret the
detailed information on a report, you can summarize
the numeric information using subtotals and grand totals. You can also display totals on a conditional basis using
WHEN.
As a reminder, some of the reports you generate in the Primer
extend over several pages. To focus your attention on the salient
points in each exercise, a subset of the sample output is shown.