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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Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.

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Status Not under consideration
Workspace Db2 for z/OS
Created by Guest
Created on Feb 19, 2014

RELATED IDEAS

Currently Committed for UPDATE

In DB2 10 for z/OS a new feature allowing currently committed data was deployed, enabling an application reading data to have the option of viewing previously committed work. This allowed for greater application concurrency, comparability with Oracle and DB2 for LUW, and in some cases better data accuracy.

HOWEVER, this feature was only implemented for INSERT and DELETE operations, and does not work for UPDATE operations.

This request is simply to expand the feature to include UPDATE operations. This can be implemented by enabling either or these techniques (or some other technique of course):

1) retain psuedo-updated before row images in the table space.
2) retain psuedo-update before row images in a workfile for the duration of the unit of work performing the update.
3) store log RBA/LRSN values together with lock information for retrieval of before row images from the active log.

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