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Course Catalog » PL/1 Programming Curriculum » PL/1 Programming Series

PL/1 Accessing Data in Files

Duration
5 hours

Overview

Description

The PL/1 Accessing Data in Files course explains how to use PL/1 to access and update data in both sequential and random access files. It also describes how to handle file and generic error conditions.

Audience

Application programmers who maintain and develop commercial and scientific PL/1 programs.

Prerequisites

Knowledge of programming concepts and experience with mainframe system architecture.

Objectives

After completing this course, the student will be able to:

  • Identify how to access files
  • Recognize file processing methods
  • Identify condition and error handling

Course Content

Consecutive File Processing

Record-Orientated File Processing Concepts

Consecutive File Characteristics

File Declarations for a Consecutive File

Read, Write, and Update Operations

Input and Output Area Definition

End-of-File Processing

Direct Access File Processing

Direct Vs Random Record Location

Keys and Random Access

VSAM Data Set Types Characteristics and Declaration:

  • ESDS
  • KSDS
  • RRDS

Regional and Indexed Data Sets

Using Keys

Skip Sequential Processing

Conditions Set by Key Processing

Move File Processing

Locate File Processing

Other File Processing Methods

Stream-Orientated File Processing

Characteristics of Stream I/O

GET and PUT Statements

File Attributes and I/O Statements

How to Select Different Data Set Types for Your Programs

Condition and Error Handling

ON Statement Definition

Built-In Conditions and User Defined Conditions

On Conditions Affecting Program Flow and Control

Scope of ON Conditions

Commonly Encountered PL/1 Conditions:

Generic Error Conditions

File Related Conditions

Arithmetic Related Conditions

Storage Related Conditions

PL/1 Accessing Data in Files Mastery Test

Course Catalog » PL/1 Programming Curriculum » PL/1 Programming Series
 
 
 
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