HP 3000 Manuals

HP ALLBASE/4GL Developer Self-Paced Training Guide

Summary 

This lesson showed how to define the HP TurboIMAGE/iX data set for your
application.

The HP TurboIMAGE/iX data manager uses the key fields on the default
record for the file to define an index for the location of each record in
the data set.  Key number 1 in a record layout is called the primary key.

MPE/iX 5.0 Documentation