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 (

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 ( - Use this site to find out additional information and details about the IBM Ideas process and statuses.

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

Status Not under consideration
Workspace Optim
Components Optim Data Privacy
Created by Guest
Created on Jun 14, 2023

Oracle NEXTVAL function to a character column with Optim's propagation function

Recovery of a key by Oracle number distributor to a 'VARCHAR' column.

The customer (COVEA, an ISP contract worth 120 million euros) would like to be able to use the NEXTVAL function to apply it directly to a column defined as a VARCHAR in a primary key of an Oracle table, while populating the table itself and all tables referring to it.

In fact, the customer has tables targeted by a reflexive referential integrity relationship of the VARCHAR type that he wishes to feed (via an Optim propagation function).

However, this function not only fails to populate the tables in question, but the latter end up containing orphaned data that no longer correspond to anything.

Support was unable to obtain a native solution in Optim for client, and just shared this following link with the client.

This is having a major impact on the customer's teams, who are beginning to turn to competitive solutions.

Thank you

Needed By Week
  • Guest
    Apr 18, 2024

    Case TS010900705 shows that Optim PROP does not support self-referencing referential integrity relationships.

    The enhancement request is apparently to support it.

    Workaround available: In general Optim masking using Lookup should work here. You need to list all keys that can occur and the masking of them to a new value, in a Lookup table. Then Optim does not use PROP but uses Lookup to mask the columns that are involved.

  • Guest
    Oct 19, 2023


    Pour information, le ticket ouvert sur ce sujet est le TS010900705.

    Vous pourrez y lire tout l'historique sur ce sujet, notamment la prise en compte d'une colonne Oracle (et non DB2) en VARCHAR pour l'utilisation de la fonction Nextval. La colonne en question ne contient que des caractères numériques et la fonction Nextval Oracle fonctionne correctement dans ce cas.
    Au bout de quelques mois, ce ticket a fait l'objet d'un correctif IBM que nous avons installé et qui fonctionne correctement sauf dans le cas des relations réflexives. C'est ce cas bien précis qui nous gêne encore et nous oblige à utiliser des moyens détournés et pas très agréables pour couvrir tous les cas de peuplement qui nous sont demandés.
    Cordialement, Frédéric Mosbach

  • Guest
    Oct 3, 2023

    Note, a SEQUENCE in Db2 can only be a numeric datatype (smallint, bigint, int, decimal)

  • Guest
    Sep 18, 2023

    Question 2: Is there an IBM Case number for this as a problem?

  • Guest
    Aug 17, 2023

    Optim PROP NEXTVAL is usually used for a SEQUENCE column. What does the client expect to be the behavior when there is a character column value?