HP Integrity NonStop J-Series - Manual (Page 160)

USING AN ENABLE APPLICATION
Fields
If a plus sign appears to the left of a label, the label
identifies an alternate key field. For example, consider the
following label:
+ EMPNAME __________________
In this example, EMPNAME is the label for an alternate key field.
Sometimes a label appears without a field. Such a label
identifies a group field. (A group field is a field that can be
broken down into smaller items.) When a label identifies a group
field, the labels of the items within the group usually appear on
the following screen line or lines, indented two screen columns,
for example:
+ DEPT + DEPT
REGNUM __ or REGNUM __ BRANCHNUM __
BRANCHNUM __
Notice that in the preceding example, a plus sign appears to the
left of the DEPT label, identifying the DEPT group as an
alternate key field.
A special label called Record Number identifies a courtesy key
field. This label appears as follows:
* Record Number ________
The asterisk that appears to the left of the label indicates that
you can use a Record Number field in the same manner that you use
a primary key field.
Fields
An application uses fields to accept and display data from a
record. Fields can accept and display the following types of
data:
8-7