Skip to Main Content
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).


Shape the future of IBM!

We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:


Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,


Post your ideas

Post ideas and requests to enhance a product or service. Take a look at ideas others have posted and upvote them if they matter to you,

  1. Post an idea

  2. Upvote ideas that matter most to you

  3. Get feedback from the IBM team to refine your idea


Specific links you will want to bookmark for future use

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.

ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

IBM Employees should enter Ideas at https://ideas.ibm.com


Status Under review
Created by Guest
Created on Jun 4, 2024

Null Handling with CDC live audit setup

Problem Statement:

In our current CDC setup tables are mapped with Live audit where supplementary logging is enabled only on primary key columns and for other columns supplementary logging is not enabled. And hence we cannot differentiate between the actual updated NULL values and NULL which is inserted by CDC when source column is not updated. 

CDC source instance created with read only access. Source Database minimal supplementary logging is enabled.

Solution: 

Since we cannot apply supplementary logging for all columns on source database, we need solution that will differentiate the Actual Null values and NULL which is inserted by CDC when source column is not updated. 

We understand that when there is no change in source column value which is not enabled for supplementary logging at source, CDC explicitly inserts NULL value for that column. we need CDC should not insert that explicit NULL value for that column where there is no change in source column.

Below example shows the difference between current and proposed solution where table has 2 columns named A and B where A is getting changed to value 1 and B column is unchanged.

Current CDC insert statement: insert into table (A,B) values ('1', NULL)

Proposed CDC insert statement: insert into table (A,) values (1)

So that we can handle that NULL for unchanged column with target table columns DDL with default criteria.

 

Needed By Quarter