Focal Point Banner

As of December 1, 2020, Focal Point is retired and repurposed as a reference repository. We value the wealth of knowledge that's been shared here over the years. You'll continue to have access to this treasure trove of knowledge, for search purposes only.

Join the TIBCO Community
TIBCO Community is a collaborative space for users to share knowledge and support one another in making the best use of TIBCO products and services. There are several TIBCO WebFOCUS resources in the community.

  • From the Home page, select Predict: WebFOCUS to view articles, questions, and trending articles.
  • Select Products from the top navigation bar, scroll, and then select the TIBCO WebFOCUS product page to view product overview, articles, and discussions.
  • Request access to the private WebFOCUS User Group (login required) to network with fellow members.

Former myibi community members should have received an email on 8/3/22 to activate their user accounts to join the community. Check your Spam folder for the email. Please get in touch with us at for further assistance. Reference the community FAQ to learn more about the community.

Focal Point    Focal Point Forums  Hop To Forum Categories  iWay Software Product Forum on Focal Point    [Closed] MIsssing transform error

Read-Only Read-Only Topic
[Closed] MIsssing transform error
Platinum Member
I am getting the following error.

Missing or wrong flow
(ICM18954) Missing transforms for required (NOT NULL) columns in target.

I am loading a star schema. I created a flow and it created a table with no nulls for the surogate keys.

The only coluns without nulls are the surogate keys.

Then I created a flow to add daily sales to the fact table and I get this error. I don't understand why it can't have no nulls on the surrogate key?

This message has been edited. Last edited by: Kathleen Butler,
Posts: 103 | Location: ricmmond va | Registered: September 30, 2004Report This Post
posted Hide Post
A surrogate key in a dimension table uniquely identifies the row and to do so it must have a value and so should be described as NOT NULL. That said, if your are using the "Slowly Changing Dimension" load type then DataMigrator assigns a value for the surrogate key so you never need to so.

On the other hand in a fact table, it's the combination of all the surrogate keys that must be unique. So you could have one or more surrogate key as nullable although I would say a better approach is a key value with a corresponding row in the dimension table that indicates the value was not available. The measures in the fact table can be nullable or not as needed.

Please check the target transformations to ensure that you do indeed have values assigned for all the columns that require values. If you right click on the header line you can add Nulls to the information that is displayed so you can see which columns allow nulls.

Posts: 397 | Location: New York City | Registered: May 03, 2007Report This Post
  Powered by Social Strata  

Read-Only Read-Only Topic

Focal Point    Focal Point Forums  Hop To Forum Categories  iWay Software Product Forum on Focal Point    [Closed] MIsssing transform error

Copyright © 1996-2020 Information Builders