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Enterprise COBOL: Intermediate
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Duration:
5 - 10 days
(Course length depends on the experience and background of the students.) |
| Participants: Experienced programmers responsible for developing and maintaining COBOL application programs. |
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Objectives:
Upon successful completion of this course you will be able to:
- Make appropriate use of copybooks. - Create new data sets using Transaction Master Logic. - Create complex reports such as multi-level control break reports. - Code tables, indices, subscripts, intrinsic functions, and appropriate compile options. - Search tables using SEARCH, SEARCH ALL and PERFORM. |
| Overview: This is the second course of a multi-part series that teaches the basics of Enterprise COBOL application development. It focuses on a variety of programming approaches to sequential I/O and sophisticated report writing and error handling as well as date processing and table processing. |
| Prerequisites: Students need to have completed the Enterprise COBOL Programming: Introduction course, and have basic experience with z/OS JCL for JES2 or JES3, and TSO/ISPF. |
| Format: Lecture and hands-on computer workshops. Throughout the course, students perform many hands-on workshops and coding exercises to reinforce the material presented in lectures. |
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Topic Outline:
- Conditional Processing with EVALUATE EVALUATE (object EVALUATE) EVALUATE (logical EVALUATE) Next Sentence vs. Continue Periods - Binary Numbers in COBOL USAGE IS COMP Data Type comparison Big Binary, COMP-5 and TRUNC(BIN) Efficient coding of COMP numbers - Structured Programming Logic for Application Programs Functional Decomposition Structured COBOL Code Chaining, Coupling and Cohesion - Structured Walkthrough What is a Structured Walkthrough How to Conduct one Benefits - Logic for Simple Reports Headers, Column Headers and Footers Counting Detail lines Creating Test Data - Logic for Validation and Error Reports Error Reports Validating Input Data Defensive Programming, I/O counters Page # of # Reports - Logic for One-Level Control-Break Reports One-Level Control Break Logic Cover Pages and Trailer/Summary Lines Creating Test Data - Advanced Reports and Dates Multiple-Level Control Break Logic Today’s Date - Using ACCEPT Pseudo Registers for Dates Intrinsic Functions for Dates Creating Test Data - 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 - Logic for Transaction Master Updates Transaction Master Update Logic Creating Test Data - One-Dimensional Tables Table Processing Table Definition, Fixed Length Subscripts and Indexes Display Index Value Initialize a Table Loop Through a Table - Searching a Table Searching Using PERFORM Linear SEARCH Binary SEARCH ALL - More Table Processing Subscripts Indexing vs. Subscripting SSRANGE Debug Option Table Efficiencies |
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