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Status Not under consideration
Workspace IBM i
Categories Db2 for i
Created by Guest
Created on Mar 8, 2021

RELATED IDEAS

Replace native trigger while active

When there's a need to replace a high level language trigger, an exclusive lock is required to the program object.

In a 24/7 system this is almost impossible what makes the use of triggers a no-go.

Programs in use (apart from triggers) can be replaced without an issue (they're moved to QRPLOBJ) so this doesn't seem a reasonable requirement.

It should therefore be possible to replace trigger programs as well while the file is being used.

NOTE: QAQQINI setting ALLOW_DDL_CHANGES_WHILE_OPEN does NOT solve this as it doesn't work for native triggers (ie. written in RPG for example).


Use Case:

When there's a need to replace a high level language trigger, an exclusive lock is required to the program object.

In a 24/7 system this is almost impossible what makes the use of triggers a no-go.

Programs in use (apart from triggers) can be replaced without an issue (they're moved to QRPLOBJ) so this doesn't seem a reasonable requirement.

It should therefore be possible to replace trigger programs as well while the file is being used.


Idea priority Urgent
  • Guest
    Reply
    |     Apr 22, 2021

    Can you provide some more details on option 1 ? Will the temporary trigger point to the same event and program... doesn't it get executed twice in that case ?

    PS. I'm deeply disappointed that the database team can find the time to replicate all API's on the system to SQL functions (which we can write ourselves as well) but can't find any time to provide real solutions for real problems that we can't easily solve.

  • Guest
    Reply
    |     Apr 17, 2021

    IBM does not intend to provide a solution to this request at this time, so it is being closed. While we agree this is a valid request, the database team has many higher priority requirements, so this request is not likely to be implemented anytime soon.

    There are some work-arounds, including:
    1. Add a second temporary trigger. Then remove/replace the first one with the updated version. Remove the temporary trigger.
    2. Change the trigger from an external trigger to an SQL trigger.

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