Crystal Reports for Eclipse Designer Guide

Summary

The Summary functions are all used to summarize field data in several different ways. Because of their unique summarization features, they have been grouped together as summary functions.
Summary functions can be designed to perform operations on group data.
Note:
  • Not all arithmetic group functions are available for use with all data types.
  • In order to use a summary function to insert a group field in a formula, you must have already entered a group field in your report with identical parameters: same field, same sort and group by (trigger) field, and same action (for example, average, count).



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