Pathmaker Programming Guide

Contents
xiv 067868 Tandem Computers Incorporated
Undoing an INSERT, DELETE, or UPDATE (Shifted F13) B-16
Undoing a DELETE Operation B-16
Undoing an UPDATE Operation B-16
Undoing an INSERT Operation B-16
Operator Display and Error Messages B-17
Terminal Function Keys B-18
Appendix C Defining Data for a NonStop SQL Pathmaker Application
Using Null Values C-1
General Guidelines for Using Null Values C-2
Using Null Values in Database Requesters C-4
Using Null Values in Transaction Requesters C-8
Using Clustering Keys C-9
Using Date and Time Data Types C-10
Index Index–1
Figures Figure 2-1. Linkage for User-Supplied Functions 2-23
Figure 2-2. Macro Example 2-43
Figure 3-1. Creating Pathmaker Applications Bottom-Up 3-5
Figure 3-2. Creating Pathmaker Applications Top Down 3-7
Figure 3-3. Accessing Pathmaker Projects 3-9
Figure 3-4. Pathmaker Main Menu 3-11
Figure 3-5. Creating a Custom Pathmaker Application 3-16
Figure 3-6. Tasks for Creating DB Requester Applications 3-17
Figure 3-7. DB Requester Application Screen 3-18
Figure 3-8. Application Screen Based on a Single-File DB Requester 3-23
Figure 3-9. Application Screen Based on a Multifile DB Requester 3-24
Figure 3-10. Alternate Default Screen Layout for a Multifile DB
Requester 3-27
Figure 4-1. Structure of a Pathmaker COBOL85 Server Procedure
Division 4-6
Figure 4-2. COBOL85 Server Generation for NonStop SQL 4-7
Figure 4-3. Contents of a COBOL85 Custom Service 4-9
Figure 4-4. Structure of a Pathmaker C Server 4-12