IBM Data Platform Ideas Portal for Customers


This portal is to open public enhancement requests against products and services offered by the IBM Data Platform 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



Add a new idea Subscribe
Status Under review
Workspace Db2 for z/OS
Created by Guest
Created on Jul 4, 2025

RELATED IDEAS

Allow ALTER TABLE xxx COLUMN yyy SET NOT NULL

The ability to change nearly everything about a column is really cool in Db2. Sadly, the one thing that you cannot easily change is the NULLability of any given column. This is definitely a requirement all over the place and currently can only be done by either a DROP and reCREATE or a set of nasty ADD COLUMN, DROP COLUMN, RENAME COLUMN SQLs which forces at least one REORG for materialization even if the table is empty!

The problems get worse if you have old table designs where people have NULLable columns but no actual NULL data due to not reading the docu years ago...

The minimum I would want is a docu update explicity saying ALTER TABLE xxx ALTER COLUMN yyy SET NOT NULL is not allowed. Perhaps with a small paragraph about the best way to then get there (Like in my additional details)

Needed By Quarter

By clicking the "Post Comment" or "Submit Idea" button, you are agreeing to the IBM Ideas Portal Terms of Use.
Do not place IBM confidential, company confidential, or personal information into any field.