Designing Functions › Device Designs › Exercises

Exercises

Before continuing with the rest of the tutorial, complete the following exercises.

1. Create the default functions for the RACE and JOCKEY files as you did for the COURSE and HORSE files. You will create the default functions for RACE ENTRY later in this chapter.

   Note: Remember that CA 2E automatically creates the default functions for a file the first time you type F against any relation for the file on the Edit Database Relations panel.

2. Check the device design for each of the following external functions to improve its appearance and to ensure that the device design does not exceed the size of the panel: Edit Course, Select Course, Edit Race, Select Race, Edit Jockey, Select Jockey, Select Stallions, and Select Mares. Note that a device design that exceeds the size of the panel will cause errors when you generate the functions in the Generating, Compiling, and Executing chapter.

   Note: You access the device design for a function by typing S against it on the Edit Functions panel or by pressing F9 from the Edit Function Details panel. To edit the device design, use the function keys you just used to edit the device designs for the Edit Horse and Select Horse functions. Press Help or refer to the table earlier in this topic for a list of function keys.