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Enterprise COBOL: Advanced
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Duration:
5 - 8 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:
- Code main and subprograms and call subprograms from other programs, passing appropriate data. - Pass data from JCL PARMs into your main COBOL program. - Process VB records. - Code internal SORTs and use a variety of advanced SORTING techniques. - Generate XML documents and parse XML documents (optional). |
| Overview: This is the third course of a multi-part series that teaches the basics of Enterprise COBOL application development. It focuses on multi-module programs using CALL and LINKAGE SECTION, internal SORT, Variable blocked record processing, STRING, UNSTRING, INSPECT, more intrinsic functions, LE functions and XML parsing and generation. |
| Prerequisites: Students need to have completed the Enterprise COBOL: Intermediate 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:
- Multi-module CALLing and CALLed programs Linkage Section Passing parameters Static and dynamic CALLs GOBACK vs. STOP RUN vs. EXIT PROGRAM CANCEL JCL to compile and link static calls JCL to compile and link dynamic calls Passing parameter values into the main program AMODE, RMODE DATA compile option Passing data by reference, by value, by context - STRING, UNSTRING, INSPECT Concatenating values Parsing values Converting values into others Tallying - Internal SORT SD for SORT SELECT/ASSIGN SORT statement syntax USING and GIVING INPUT and OUTPUT PROCEDURES Special Registers for SORT RELEASE and RETURN Sorting a Working-Storage table SORT compiler options - Variable length Tables and Advanced Table Topics Dynamically loading variable length tables SEARCH, SEARCH ALL SSRANGE Table efficiencies - Variable length Records (RECFM=VB) Why use VB VB architecture Different techniques for defining VB records AWO efficiency - XML What is an XML document? XML Parsing in COBOL XML Generation in COBOL CODEPAGEs - Intrinsic Functions Date functions Other functions not already taught - LE Callable Routines Typical LE CALLs Feedback area - Highlights of COBOL 5 and 6 Differences |
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