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Status Future consideration
Workspace IBM i
Categories Db2 for i
Created by Guest
Created on May 29, 2022

Support for Application-Period Temporal Tables

System-period temporal tables are great, but "system-time" is not appropriate in many applications. Quoting from an article by Philip Nelson on DB2 Temporal Support - A Practical Introduction:

Temporal support consists of two key concepts : system time and business time. System time support can be thought of as an audit trail of when changes occurred to data (although it may not in itself suffice as an audit trail for regulatory purposes without other safeguards being built in). Business time defines when data is effective from a business point of view.

In DB2 for LUW it is referred to as Application-Time Temporal Support.

Application-time temporal support allows:

  • Using the history to provide undo/redo support

  • Business applications: Price changes for a future date, adjusting transactions (i.e. adjust effective date due to late delivery), retroactive (transaction entered after event took place), automatic purging or "death of row" on the assigned end date, and many other applications

  • Vendor or home grown System management and change control applications: Ability to schedule a policy change in advance, schedule job change, on boarding and off boarding activities in advance (i.e. add/remove application menu access), ability to record a change with proper date and time after it took place

  • There are thousands of other examples and applications

Idea priority High
  • Guest
    Jun 28, 2022
    IBM will use this request as input to planning but no commitment is made or implied. This request will be updated in the future if IBM implements it.
  • Admin
    Nancy Uthke-Schmucki
    Jun 21, 2022

    The CAAC has reviewed this Idea and recommends that IBM view this as a low priority requirement that should be addressed. This may be beneficial for those who are modernizing and starting to use temporal tables. Industries such as banking, insurance, and service may get the most benefit.

    Background: The COMMON Americas Advisory Council (CAAC) members have a broad range of experience in working with small and medium-sized IBM i customers. CAAC has a key role in working with IBM i development to help assess the value and impact of individual Ideas on the broader IBM i community, and has therefore reviewed your Idea.

    For more information about CAAC, see

    Nancy Uthke-Schmucki - CAAC Program Manager