| Course Code: |
IM 05 |
| Course Abstract: |
This course covers IMS database programming concepts, design, coding, testing and debugging. Segment Search Arguments (SSAs) are covered in detail along with emphasis on checking the PCB mask to understand the results of IMS database calls. Each workshop is preceded by lecture, discussion, and written exercise sessions. |
| Audience: |
This course is designed for participants who must understand and code Data Language/I (DL/I) to access segments in IMS databases. |
| Duration: |
5 days |
| Learning Outcomes: |
Upon completion of this course, the participant will be able to:
> Code DL/I calls for the following functions -
. GU, GN, GNP
. GHU, GHN, GHNP
. ISRT, REPL, DLET
> Check the status code for the success for EACH calls
> Modify a skeleton COBOL program for the following -
. Calls with NO SSAs
. Qualified calls with Unqualified SSAs
. Qualified calls with Qualified SSAs
. Command codes
. Boolean Qualifications |
| Course Topics: |
Database Terminology, Concepts and Facilities
IMS Access Methods
IMS Data Blocks
Hotel Chain Data Base
IMS Application Program Structure
DL/I Random Retrieval
DL/I Loading and Inserting Segments
DL/I Deleting and Updating SegmentsDL/I Command Codes |
| Prerequisites: |
A familiarity with conventional file organizations for sequential and direct access to data records is needed. Six months of experience with COBOL and JCL is required. Also, the completion of an Introduction to IMS class or equivalent experience is recommended. |