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IBM Data and AI Ideas Portal for Customers


This portal is to open public enhancement requests against products and services offered by the IBM Data & AI organization. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


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Status Delivered
Created by Guest
Created on Mar 14, 2019

Specify User Exit routine name when defining IMS-DB virtual table

In Japan, most IMS user customers, especially in financial sector, have their roll-your-own program modules called "DBI" (database interface), and database access must be made through DBI always. DBI provides, for example, data compression/de-compression by their own algorithm, and sometimes it does various complex data manipulation depending upon customer requirements.

Such customer needs to use their own Post-Read / Pre-Write User Exit routines together, when accessing their DVM virtual table.

However, customer cannot specify Post-Read / Pre-Write User Exit routine names when defining IMS/DBCTL or IMS-Direct virtual table so far.

DVM should be enhanced to provide ability to specify User Exit routine names when defining IMS-DB virtual table.