HP Integrity NonStop J-Series - Manual (Page 106)

CREATING AND RUNNING A MULTIFILE APPLICATION
Associating and Linking Boxes
EMPLOYEE-DETAIL
Page 1/1
* EMPNUM ___________
* DEP-KEY
DEPENDENT-NO ____
DEPENDENT-NAME ________________________________
RELATIONSHIP ____
DEPENDENT-AGE ____
* EMPNAME _______________________________
* DEPT
REGNUM ___________
BRANCHNUM ___________
JOB _______________________
AGE ___
SALARY _______________
VACATION ___
Ready for input F3 for Help, shift F16 to exit
S5044-029
.00
Figure 5-10. Sample Screen With Two Boxes
The tree structure defined for an application also determines the
the records that the application can retrieve or insert for each
box. If the application can retrieve or insert a record for a
box, that record is said to qualify for the application-access
path.
An ENABLE application can read or insert any record for the box
at the first level of the tree structure. Therefore, all the
records associated with this box qualify for the application-
access path.
An ENABLE application can read or insert records for a box at the
second level of the tree only if those records match (have the
same join-field values as) records read for or inserted in the
box at the first level of the tree. Therefore, a record for a
box at the second level of the tree qualifies for the
application-access path only if that record matches a record for
the box at the first level of the tree.
Figure 5-11 illustrates this concept for the "employee" and
"dependents" boxes.
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