Load by Page and Maintenance Subfiles

Duration

Overview

Audience

Prerequisites

Objectives

• A Load by Page subfile and a File Maintenance subfile.
• The DDS used to create a Load by Page subfile.
• The RPG code that supports a Load by Page subfile.
• The DDS used to create a File Maintenance subfile.
• The RPG code that supports a File Maintenance subfile.

Course Content

Unit 1 LOAD BY PAGE AND MAINTENANCE SUBFILES PRETEST

Unit 2 DESCRIPTION OF FILE LOAD BY PAGE SUBFILE

• Examine an Example of a File Load by Page Subfile
• List Function
• DDS of Subfile Formats

Unit 3 DDS FOR FILE LOAD BY PAGE SUBFILE

• The DDS for the Subfile and Record Formats
• Conditioning Keywords and Indicators

Unit 4 RPG FILES AND SUBROUTINES

• Files and Subroutines Used in the Pick List/Inquiry Program
• Supporting RPG Code

Unit 5 RPG TO LOAD SUBFILE PAGE

• The Workings of the GETPAG Subroutine Called from *INZSR
• Adding Records to the Subfile
• Displaying “More...” or “Bottom”
• Operation of an Example Subfile

Unit 6 RPG TO PROCESS SUBFILE INPUT

• How Enter, F3, and Subfile Selections of 1 and 5 are Processed
• Using a Loop to Process the Users Response

Unit 7 RPG TO PROCESS SUBFILE ROLLUP

• When and How the Program Processes a Subfile Rollup Request

Unit 8 DESCRIPTION OF FILE MAINTENANCE SUBFILE

• Examine an Example of a File Maintenance

Unit 9 DDS FOR FILE MAINTENANCE SUBFILE

• DDS for the Display File
• The Keywords SFLRNA, SFLNXTCHG, and SFLMSG

Unit 10 RPG TO DISPLAY AN ORDER

• The RPG Code to Read and Display the File Maintenance Subfile
• Flow of Control

Unit 11 RPG TO MAINTAIN ORDER LINES

• The RPG and DDS Used to Maintain Order Details in a Subfile
• Adding a New Item to an Order List
• Deleting an Order Line

Unit 12 RPG TO UPDATE THE DATABASE

• How Data is Updated on the ORDERS and LINES Files

Unit 13 LOAD BY PAGE AND MAINTENANCE SUBFILES MASTERY TEST