REP008 - Virtual Fields
A virtual field is a field which appears as part of a file but does not actually exist in the physical database file. Its value is dynamically derived based on the fields in the file. Virtual fields provide flexibility, since you can combine or extract data from fields in a file and extend the information already contained in the file.
Objectives:
- To explain virtual fields.
- To highlight the different types of virtual fields that can be defined using the LANSA Repository.
To achieve these objectives, you will complete the following:
Step 1. Add Virtual Fields to Employee File
Step 2. Calculation Virtual Field
Step 3. Concatenation Virtual Field
Step 4. Code Fragment Virtual Fields
Before you Begin
In order to complete this tutorial, you must have completed the previous tutorials.