Duration
8 hours
Overview
The Labs – COBOL (z/OS) – Working with COBOL Data course provides a range of exercises that can be run in your organization’s mainframe training sandbox. Exercises in this course are more difficult than those from the Labs – Basic course, focusing on a range of arithmetic operations, calling programs and passing information between programs.
Audience
Programmers who need to use COBOL in a z/OS environment.
Prerequisites
A solid understanding of COBOL or the successful completion of the following Interskill courses:
- COBOL Programming – Basics
- COBOL Data and Datafile Definitions
- COBOL – IBM Enterprise COBOL 6.3 for z/OS
- Labs COBOL (z/OS) COBOL Basics
Objectives
After completing this course, the student will be able to:
- Call external programs
- Call a z/OS Language Environment callable service
- Validate, manipulate, and display numbers
- Process XML data
- Pass parameters and data between programs
Course Content
Creating a Random Number
CURRENT-DATE and RANDOM Intrinsic Functions
CEERAN0 Language Environment Callable Service
Questions
Language Environment Callable Services
CEE3DLY Requirements for Dynamic Calls
CEE3DLY Requirements for Static Calls
CEEIGZCT File
Questions
Validating Numbers and Arithmetic
ACCEPT Statement
Using the UNSTRING Statement on Contiguous Data
NUMVAL Intrinsic Function
INSPECT Statement
COMPUTE Statement and Arithmetic Operations
Questions
Passing Data Between Programs
Calling a Program Within a Program
Passing Data to a Program
EVALUATE Statement
Creating XML Data and Passing it to a Program
XML PARSE Statement
Questions