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 CICS
Overview |
CICS
Programming |
Advanced
CICS Programming |
A one day course to give a basic understanding of how CICS cater for the on-line environment. Extremely helpful to those involved with interpreter and generator packages that run under CICS as well as programmers, analysts and operators, or indeed anyone requiring a basic knowledge of the way CICS executes.
| Introduction |
Comparison of on-line batch systems; Overview of CICS system; The functions it performs |
| Task/Transaction |
Program execution; Control tables; How transactions flow through the system |
| Program
development |
Command level programming; Translation/compilation process; Passing control using LINK, XCTL, and RETURN; efficient programming techniques |
| BMS |
Introduction to Basic Mapping Support; How maps are used |
| CICS
Control Blocks |
EIB; CSA; CWA; TWA; TCTUA |
| CICS
Failures |
How CICS copes with transaction and system failures; Restricting access using security keys |
| Modal
Commands |
Condition Codes; Modal commands; AMS commands |
A highly practical course lasting four or five days, depending on the experience of those attending, to enable participants to be able to design, code and test Command level CICS programs. A background knowledge of MVS is preferable for delegates.
| Introduction |
On-line functions and characteristics; CICS system overview; Control tables; Tasks and transactions |
| Command
Level Programs |
Format of the command; The interpreter and its functions |
| Screen
handling |
Design considerations; Maps and mapsets; BMS Macros; BMS commands; Cursor control; Changing attributes dynamically |
| Program
Control |
Transferring control; XCTL, LINK and return; Conversational and pseudo-conversational techniques |
| File
Access |
File Control Table; Sequential and direct access on VSAM data sets |
| Exec
Interface Block |
fields and uses; Testing which key was pressed; the HANDLE AID command |
| Error
Detection |
Common errors; detecting errors using HANDLE CONDITION and IGNORE CONDITION commands; Using NOHANDLE and RESP options; Use of EDF in testing |
| Passing
Data |
COMMAREA; CWA, TWA, Transient Data and Temporary Storage |
For those who need further knowledge of CICS, particularly efficient techniques and paging using temporary Storage. Ideally the delegate will have attended the CICS Programming course and had an opportunity to utilise the skills learnt before attending this three day course.
| CICS
Control Vlocks |
TWA, CWA, TCTUA etc.; Required table entries; ADDRESS and ASSIGN; COBOL BLL cells and the COBOL II ADDRESS special register |
| Control
Operation |
Interval Control commands; Storage Control commands |
| TS,
TD and Journals |
Uses; Commands involved; Paging techniques; USE of the CEBR transaction |
| Security
and Recovery |
Security keys and table entries; timeouts; transaction failures and DTB; System failures and emergency restart; CICS start-up; CICS shutdown |
| Abends
and Debugging |
Exceptional conditions; HANDLE CONDITION; IGNORE CONDITION; NO HANDLE; RESP; CICS trace facility; CEDF; Controlled abends |
| Programming
Considerations |
Efficiency techniques; Storage considerations; Minimising data transmission; Using MDT's; Reading data in 'move' and 'locate' mode |
| VSAM
Considerations |
CI size; CI/CA splits; Nonshared and local-shared resources; NSR versus LSR; Buffers; Strings; Share options; FCT entries; Non-CICS aspects |
| CICS
Overview |
CICS
Programming |
Advanced
CICS Programming |
Please see our further information page for more details or call +44(0)1206 240647 to book any of these courses