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Mainframe - IMS DB Programming
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Mainframe - IMS DB Programming
Mainframe - IMS DB Programming
Duration in Hours (4 Hours session) : 60
Duration in Days: 15
MFAPP – 03 IMS DB – Hierarchal Data Base
Course Code: MAIM04
40 Hours of Theory
20 Hours of Lab
IMS Database Structures
Define a database.
Identify major data-related goals.
Identify the components in the IMS hierarchy.
State the relationships between the components.
Navigate through the segments in a database.
The IMS Environment
List and describe the components of an IMS environment.
Discuss the three IMS processing modes:
Batch, BMP and MPP.
Define PCBs in the PSB to create a Logical Database.
Understand the purpose and recognize the
Components of a Database Description (DBD)
IMS Application Programming Components
List the IMS components required in a PL/I application program.
Describe the function of each IMS component.
Place each IMS component in the appropriate section of a PL/I application program.
Enter and exit IMS.
Segment Search Arguments – (SSA)
Define an SSA.
Distinguish between a qualified and unqualified SSA.
Describe relational operators.
Demonstrate the use of command codes.
DL/I Retrieval Calls
Write a DL/I call command using the function
Codes, GU, GN, GNP, to retrieve data segments.
Access multiple data segments using PATH calls.
Updating Segments
Code GET HOLD calls in a PL/I IMS program.
Code REPLACE calls.
Code COMMAND CODES or REPLACE calls to update a path of segments.
Inserting and Deleting Segments
Code INSERT calls to initially load a database.
Code INSERT calls to add new segments to an existing database.
Code DELETE calls to delete one or more segments from a database.
Effective Programming Techniques
Know how to handle unexpected IMS status codes.
Understand the benefits of using standard error routines.
Develop techniques to increase the effectiveness and efficiency of an IMS application program…
– efficient segment access strategies
– taking checkpoints.
Compiling, Execution, Debugging
COMPILE an IMS application program .
EXECUTE an IMS application program
TEST an IMS application program .
DEBUG an IMS application program
Miscellaneous and Performance Check
Miscellaneous and Performance Check
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