You can invoke the Field Explorer by clicking on View>Field Explorer
The Field Explorer contains 6 categories of data fields for use in your report.
These are pieces that represent the tables and fields that you either invoked thru the Crystal Reports Wizard, or will see once you open up one of the QQube Crystal Reports examples. Each Table looks like a folder, and will expand to see the fields underneath it.
The field is what you drag and drop into your report.
(We will be using the sales_(qqube10.x).rpt file for the following examples.) The power of Crystal Reports is implemented here with an unlimited palette of formula making capability. These are user created, and will allow you to parse strings, multiply, create conditional results, etc.
Parameters are ‘filters upon demand’
When you open a report created with Parameter Fields, the user is prompted to give a value that will be used to filter the report. For the Invoice Register by Shipping State example, the parameter prompt will look like this:
There are times where you would like to have a subtotal, but based upon certain conditions, say greater or less than a particular dollar amount.
Most every report is grouped by say, customer, or item, or sales rep. Crystal Reports creates a special field, which you can use to segment your group, or use in formulas.
These are both internal and built-in ‘shortcut’ fields for current date, print date, page number, total page count, record number,etc. and are listed for convenience.
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