Welcome to BAC344! Business Applications using COBOL Cindy Laurin And Lew Baxter

Bit about Cindy

Course Standards See ~cindy.laurin

Lecture Notes See ~cindy.laurin

Material Covered Two Mid-Term tests (40%) Seven Assignments (30%) One Final Exam (30%)

(or why are you taking this course?) Why are you here? (or why are you taking this course?)

Why are we studying COBOL? Traditional Structured Programming & Design Techniques. Transactional Processing How to use our DB2 skills learned in IBC233 Learn some COBOL syntax! Maintain Legacy systems

Nothing new here! IPC144 IBC233 Transaction processing Arrays Interactive screens

What grade are you going to get?

Power System Model 520 IBM Midrange Computer zeus.senecac.on.ca

System 3 1969 - 1985 System 32 1975 - 1984 System 34 1977 - 1985 System 36 System 38 1983 - 1994 1980 - 1994 AS/400 1988 - present iSeries 2000 - present system i 2005 - 2006 i 2007 Power Systems 2008

IBC233 Review

Green Screen

Seneca Network (simplified) MATRIX ZEUS (Power Systems) PCs in the Lab PCs at Home Fire Wall

Connectivity Software Telnet doesn’t work - doesn’t support system i Function Keys Rational Developer (RDI) Client Access Mocha (at home) Available for download from the CS site. Select Software for Windows ‘95 and look for MOCHA

ibm i Operating System Object-Based Types of Objects include: Everything that takes up space and has a description is an object. Types of Objects include: User Profiles Job Queues Files Programs

Traditional ibm i Data Storage Hierarchy Library Objects Members contain data - Files only

Traditional IBM i Data Storage Hierarchy LAURIN - *LIB BAC344LIB - *LIB DA344x99 - *LIB QCBLLESRC *FILE DA344x99 *OUTQ Object1 *PGM PGM1 QCBLLESRC *FILE PGM2 Object2 *OUTQ PGM3 PG1 PG2 PGM1 *PGM Object3 *FILE PG1 *PGM PGM3 *PGM

Library Lists Each job has an attached Library List Different Types of Libraries: System: IBM Supplied Product: Added automatically when an IBM product is used Current: Defined by an individual user ID User ID’s default Library User: Non-IBM Supplied Libraries Created by Business to organize programs, files, etc.

Library Lists Object used to organize data storage. Are different for each student. Get set back to your default when you signoff.

IBM i finds Objects Qualified Names Library/Object BAC344LIB/QCBLLESRC Using Library Lists! How are Library Lists sequenced?

System vs Subsystem System = ZEUS Subsystem is a logical grouping of resources

Database

Physical Files vs Logical Files

CL

CL Syntax Command-name (space) parameter

Keyword vs Positional Notation WRKOUTQ OUTQ(PRT01) CRTLIB LIB(MOOGK10) + TEXT(‘Cindys Library’) Positional WRKOUTQ PRT01 CRTLIB MOOGK10 *PROD ‘Cindys Library’

Naming of Commands Based on English! Combination of Verb and Noun CRTLIB Library Create

CL Syntax Use Menus to find the command Use F11 and Help to find the Syntax

Commands that you’ll use? Look at RDI Assignment 1

Assignment 1

Next Class Work on Assignment 2