Mainframe COBOL

Module 00: Course Introduction

Module 01: Your First Enterprise COBOL Program

• What is Enterprise COBOL
• COBOL divisions
• Analyzing a sample COBOL program
• Column layout
• Exercise: First Program

Module 02: Compiling and Linking Your First Program

• Creating a Loadlib PDS
• Compile and Link PROC
• Compile and Link JCL
• Exercise: Compile Program

Module 03: Running Your First Program and Helpful References

• Compile, Link and GO PROC
• Enterprise COBOL IBM Manuals
• Language Environment IBM Manuals
• Exericise: Run Program

Module 04: Identification Division, Load Libraries and Documentation

• Coding the Identification Division
• Load Libraries and CSECTs
• Self-Documentation
• Exercise: Identification Division

Module 05: Data Division Essentials: Part 1

• The four sections of the DATA division
• Naming COBOL Variables/Identifiers
• Level Numbers
• Group and Elementary Items
• Picture Clauses
• Value Clause
• Exercise: Data Division Part 1

Module 06: Data Division Essentials: Part 2

• Numeric Edited Pictures
• Figurative Constants
• Data Continuation
• Numeric and Alphanumeric Literals/Values
• Exercise: Data Division Part 2

Module 07: Data Division Essentials: Part 3

• FILLER and Implied FILLER
• Blank When Zero
• Justified
• QUALIFICATION - for Duplicate Variables
• REDEFINES
• WORKING-STORAGE Layout
• Exercise: Data Division Part 3

Module 08: COBOL Numbers

• COBOL Numbers
• Hexadecimal in COBOL
• Data Representation
• USAGE IS DISPLAY - EBCDIC
• USAGE IS COMP-3
• Big Decimal Numbers - 31 Digits
• Exercise: COBOL Numbers

Module 09: Procedure Division Essentials: Arithmetic and Assignment

• ADD
• SUBTRACT
• MULTIPLY
• DIVIDE
• COMPUTE
• MOVE
• Exercise: Arithmetic and Assignment

Module 10: Procedure Division Essentials: Conditions, 88's and IF's

• Conditions
• Numeric and Alphabetic Class Tests
• IF and Nested IF
• Coding and Setting 88's
• Exercise: Conditions

Module 11: Procedure Division Essentials: Looping with PERFORM

• IN-LINE PERFORMs
• OUT-OF-LINE PERFORMs
• Referencing Modification - Substring
• Exercise: Looping

Module 12: Structured Programming Concepts Part 1

• Structured Programming Concepts
• Modular Programming
• Functional Decomposition
• Pseudocode
• Structured Code
• Meaningful Names
• Exercise: Sequential I/O

Module 13: Structured Programming Concepts Part 2

• More Functional Decomposition
• Pseudocode
• Structured Code and Meaningful Names
• Testing
• Exercise: Structured Programming

Module 14: Sequential File I/O

• I/O Processing
• SELECT...ASSIGN...
• FD - File Definition
• OPEN and CLOSE
• READ and READ INTO
• WRITE and WRITE FROM
• A Sample Program for Sequential I/O
• Sample JCL

Module 15: Course Summary

You need to know basic z/OS JCL for JES2 or JES3, and TSO/ISPF.

Module 00: Course Introduction

Module 01: I/O for Raw Data, Stored Data, and Reports

• Reading Raw Data
• Writing Stored Data
• Reading Stored Data
• Writing Simple Reports
• Exercise: Basic I/O

Module 02: Conditional Processing with EVALUATE

• Object EVALUATE
• Logical EVALUATE
• Next Sentence vs. Continue
• Periods
• Exercise: EVALUATE

Module 03: Binary Numbers in COBOL

• USAGE IS COMP
• Data Type comparison
• Big Binary - COMP-5 and TRUNC(BIN)
• Efficient coding of COMP numberbers
• Exercise: Advanced Numbers

Module 04: Structured Programming Logic for Application Programs

• Functional Decomposition
• Structured COBOL Code
• Chaining, Coupling and Cohesion
• Exercise: Structured Programming Logic

Module 05: Structured Walkthrough

• What is a Structured Walkthrough
• How To Conduct One
• Benefits

Module 06: Logic for Simple Reports

• Headers, Column Headers and Footers
• Counting Detail Lines
• Creating Test Data
• Exercise: Simple Reports

Module 07: Logic for Validation and Error Reports

• Error Reports
• Validating Input Data
• Defensive Programming, I/O Counters
• Page # of # Reports
• Exercise: Error Reports

Module 08: Logic for One-Level Control-Break Reports

• One-Level Control Break Logic
• Cover Pages and Trailer/Summary Lines
• Creating Test Data
• Exercise: One-Level Control Breaks

Module 09: Advanced Reports and Dates

• Muliple-Level Control Break Logic
• Today's Date-Using ACCEPT
• Pseudo Registers for Dates
• Intrinsic Functions for Dates
• Creating Test Data
• Exercise: Advanced Reports

Module 10: Copybooks and Compiler Options for Debugging

• COPY and Other Compiler Directing Statements
• COPYLIB JCL - SYSLIB DD
• COPY xxx REPLACING xxx BY xxx
• EJECT and SKIP
• TEST and SSRANGE compiler options for debugging
• Exercise: Copybooks

Module 11: Logic for Transaction Master Updates

• Transaction Master Update Logic
• Creating Test Data
• Exercise: Transaction Master

Module 12: One-Dimensional Tables Part 1

• Table Processing
• Table Definition, Fixed Length
• Indexing
• Display the Value of an Index
• Initializing a Table
• Looping Through a Table
• Exercise: One-Dimension Tables Part 1

Module 13: One-Dimensional Tables Part 2

• Table Example
• Initialize a Table Using REDEFINES
• INITIALIZE verb
• Initialize a Table with VALUE
• Exercise: One-Dimension Tables Part 2

Module 14: Searching A Table

• Searching Using PERFORM
• Linear SEARCH and Example
• Binary SEARCH and Example
• Exercise: Search

Module 15: More Table Processing

• Subscripts
• Indexing Vs. Subscripting
• SSRANGE Debug Option
• Table Efficiencies
• Variable-length Tables
• Exercise: More Tables

Module 16: Course Summary

You will need basic experience with z/OS JCL for JES2 or JES3, and TSO/ISPF and have completed Enterprise COBOL Programming Part 1.