CICS

Course	Introduction to CICS Application Programming
Level	Introductory
Overview	The participants will be introduced to the concepts and features of CICS. The course describes the Application Programming Interface (API). The participants will learn how to code and debug CICS command level programs written in COBOL. Lab sessions will help in reinforcing the concepts discussed during lectures.
Objective	On completing this course, participants will be able to - Understand the CICS functions and facilities. Code COBOL programs for CICS environments. Prepare CICS application programs, and test and debug them. Access and modify data in VSAM files and databases. Send and receive maps. Pass and receive control to and from other programs
Duration	Six (06) days: (09.30AM till 17.30AM)
Participant's Profile	Application programmers who will code and debug CICS command level application programs.
Prerequisite	Working knowledge of programming in COBOL. Basic knowledge of TSO, ISPF and JCL.
Follow-on session	DB2 session is recommended after this course.
Course Contents	Day – 1 Introduction to CICS Transaction processing terminology and concepts On-Line Transaction Processing Transactions, Program, Task Multitasking, Multithreading, Re-entrancy CICS architecture and tables CICS transaction flow CICS supplied transactions CEBR CECI CEDA CEDF CEMT Lab Session – 1 (CICS supplied transactions). Day – 2 Application design overview Pseudo conversational programming COMMAREA Exec Interface Block Testing and handling exceptions Interval control commands A sample program Preparing your program for execution Lab session – 2  Day – 3 Program Control LINK command XCTL command RETURN command LOAD and RELEASE commands Lab session – 3  Day – 4 Basic Mapping Support Introduction to BMS Maps and mapsets BMS macros Physical and symbolic maps I/O operations Dynamic attribute assignment Cursor positioning Multi-page maps Lab session – 4 Day – 5 CICS queues Temporary Storage Queues Transient Data Queues Browsing CICS queues Automatic Transaction Initiation Miscellany Recovery and restart Testing and debugging System security Lab session – 5  Day – 6 Data Access File control overview File control commands Reading and updating file records sequentially Reading and updating file records randomly Accessing DB2 tables Retrieving a row Delete or update rows Integrity considerations Lab session – 6