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


Add a new idea Subscribe
Status Not under consideration
Workspace Db2
Components Serviceability
Created by Guest
Created on Feb 9, 2015

RELATED IDEAS

Oracle-style isolation level 3 (multi-version read consistency) locking.(RIMS)

A description of Oracle's 'multi-version read consistency' can be found here: http://www.ss64.com/orasyntax/10locking.html. Even DB2's most liberal CS isolation is more strict then this. [update 04-27-2009]: Support for isolation level 3 queries that do not require a table-level lock or readers blocking writers - Oracle style reads from logs. This feature is not whats coming in Cobra (v97). IBM is providing a concurrency semantics in Cobra (v97) but not a RR consistent read because data can change after the query starts; today we use a combination of replication and lock table fast due to no row locks; new version of MS SQL, PostgreSQL also support this required for CRM; SAP uses its own internal lock manager because they use UR; (follow-up with greater detail on spec)
  • Guest
    Reply
    |     Nov 27, 2019

    For sure this will bring a huge concurrence improvement and thus performance gain for DB2.

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