VME SCL Programming

Course Overview

This course enables mainframe users, particularly programmers, to make the most efficient and effective use of the VME operating system. It covers all the essential commands needed to develop and test applications, along with variable handling facilities and the essentials of recovery. Delegates will return equipped with the skills and confidence to produce flexible and user-friendly procedures.

Audience

This course is for applications programmers, technical and production support staff. Operations analysts may also benefit from this course.

Prerequisites

Attending the VME Groundwork class or an equivalent level of knowledge is recommended.

Course Outline

Introduction

• Virtual Machine concepts
• Main store, Virtual store

Filestore and the Catalogue

• Users, Files, Libraries & Groups
• Security & Privacy

Introduction to SCL

• MAC usage
• Exploring the user environment

File Handling

• Creating, Assigning, Printing
• File Organisations
• Currencies
• Filestore Maintenance

Running programs & procedures

• The loading environment
• Block Structure
• Compiling procedures

Variable Handling

• Variable types
• Built-in procedures
• Parameters to procedures
• Command failure testing
• SCL cycles

Program - SCL Communication

• LINKAGE SECTION
• Templates

Procedure Writing

• Parameter definition
• Parameter validation
• EXT & REF Variables
• RESPONSE Variables
• Procedures returning a MODE

Overview of Batch Recovery

User Object Nodes

BUS Utilities