Visão Geral

Este Curso IBM Mainframe COBOL Programming Advanced fornece aos desenvolvedores de aplicativos um conhecimento mais complexo no desenvolvimento de programas COBOL em um ambiente de mainframe. O tempo é gasto em workshops de programação mais difíceis usando VSAM e processamento sequencial de arquivos, matrizes bidimensionais, classificação interna, subprogramas COBOL e funções intrínsecas. Grande parte do tempo é gasto em oficinas escrevendo e testando programas.

Objetivo

Após a conclusão bem sucedida deste Curso IBM Mainframe COBOL Programming Advanced, o aluno será capaz de:

• Entenda os princípios e práticas de codificação com arquivos VSAM vs Sequential
  
• Código para VSAM usando processamento de chave primária e chave alternativa
• Código para processamento de array de 1 e 2 dimensões
• Entenda o processamento de arquivos de tamanho variável
• Código para muitas das funções intrínsecas do COBOL
• Código para subprogramas COBOL
• Entenda o processamento de classificação interna do COBOL
• Codificação para registros de comprimento variável

Publico Alvo

• Programadores de aplicativos que desejam aprender mais sobre COBOL.
  

Pre-Requisitos

• Os alunos DEVEM estar familiarizados com z/OS JCL, TSO/ISPF e z/OS Utilities e é preferível ter experiência em programação. Os alunos DEVEM ter feito o curso CO1010, Introdução à Programação COBOL ou ter experiência comparável.
  

Materiais

Conteúdo Programatico

I. Testing and Debugging Review

1. Testing Strategies
2. Compile Listing Outputs
3. Usefulness of listings with abends
4. System Abends
5. User Abends
6. Abend Solving Methodology
7. Call syntax

II. COBOL Reports Review

1. Review of reporting (files, header and detail lines, break logic, etc..)

III. Table Handling

1. Review of Table/Array processing
2. What is the OCCURS clause
3. Tables and Redefines
4. Initializing a table
5. Loading a table
6. Searching a table
7. Using subscripts
8. One dimensional tables
9. Two dimensional tables

IV. Calling other programs

1. Call syntax
2. Linkage section
3. On Exception / On Overflow errors
4. Parameter passing
5. Dynamic vs static calls

V. How to use Access Method Services to work with VSAM files

1. How VSAM manages data sets
2. The Integrated Catalog Facility (ICF
3. Control intervals and control areas
4. Free space and record additions for a KSDS
5. How a record in a KSDS is randomly accessed by primary key
6. How alternate indexes work
7. Introduction to Access Method Services
8. Some commonly used AMS commands
9. How to use the DEFINE CLUSTER command to define a data set
10. Parameters that identify a data set
11. Parameters that describe the data set’s characteristics
12. Parameters that allocate space to the data set
13. Other DEFINE CLUSTER parameters
14. How to use AMS commands to print, copy, and delete data sets
15. How to use the PRINT command to print a data set
16. How to use the REPRO command to copy a data set
17. How to use the DELETE command to delete a data set
18. How to define and build an alternate index
19. How to use the DEFINE ALTERNATEINDEX command
20. How to use the DEFINE PATH command
21. How to use the BLDINDEX command

VI. How to work with indexed files

1. COBOL for indexed files
2. How to code Select statements
3. File status codes
4. How to code the Open, Close, Read, Write, and Rewrite statements
5. How to code the Start statement
6. How to code the Delete statement
7. A sequential file creation program
8. The program specification
9. The structure chart
10. The COBOL code
11. A random maintenance program
12. The program specification
13. The structure chart
14. The COBOL code
15. How to work with alternate indexes
16. COBOL coding using alternate indexes
17. How to code Start and Read statements
18. How to process an alternate index sequentially
19. How to process an alternate index randomly
20. Other processing techniques:
21. How to use dynamic processing
22. How to use skip-sequential processing

VII. COBOL Intrinsic Functions

1. Calendar Date Functions
2. Character Functions
3. Mathematical Functions
4. Statistical Functions
5. Financial Functions
6. Trigonometry Functions

VIII. Variable Length Record Processing

1. COBOL for variable-length records
2. How to code FD statements
3. How to write to a file that contains record types with different lengths
4. How to process a file that contains record types with different lengths
5. How to write records with a varying number of segments
6. How to process records with a varying number of segments

IX. Sorting and Merging

1. The Sort/Merge process
2. Describing the sort file
3. Input/Output procedures
4. Release/Return processes
5. Sample program

X. Testing and Debugging

1. Testing strategies
2. Compiler listings
3. ABENDS
4. Display statement
5. Finding abending statements