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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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


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Status Future consideration
Workspace Db2 for z/OS
Created by Guest
Created on Jan 8, 2017

RELATED IDEAS

Enable customers running 24/7 to create unique indexes

Our Internet and Mobile applications are used 24/7 and we do not have any batch windows nor any maintenance windows.

When creating new indexes on existing tables the a CREATE INDEX operation generates an unwanted outage when created with DEFER NO.

To avoid the outage you would like to use DEFER YES which defers the index build until a REBUILD INDEX utility execution. This works perfectly well for an index that is not defined as UNIQUE. For a UNIQUE index it is put into Rebuild Pending status which in turn means that the data cannot be read or updated with SQL until the index is rebuilt. An SQLCODE-904 will be returned to applications trying to access the table independent on access path.
  • Guest
    Reply
    |     Feb 14, 2020

    I have recommended to make new (or changed) indexes NOT UNIQUE as far as possible, when some other existing index enforces and required uniqueness. 

     

    Michael Hannan

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