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Status Delivered
Workspace IBM i
Categories Db2 for i
Created by Guest
Created on Jan 2, 2022

Support 3-level name qualifiers with Table Functions

With the expansion in most IBM i customer shops of multiple partitions and systems, the need for 3-level names was apparent and provided. Today the use of SQL User-Defined Table Functions (UDTF) is often the focus of "enhancements" to the operating system. That is APIs are being exposed via UDTF instead of an actual API. Therefore, the ability to easily call those UDTF for a separate partition is critical.
We need to be able to code a 3-level name, as follows:
select * from chicago.qsys2.active_job_info();


Use Case:

I support more than one partition for myself and my customers. The work-around of adding an EXISTS clause to SQL statement is an interesting choice for an "Advanced System" like IBM i. While it was good enough for the first few releases of the IBM Services, today with both IBM and our own UDTFs we often are using IBM ACS Run SQL Scripts or dBeaver as our "workstation console" to monitor or check jobs, spooled files, messages, etc. And we do that on all the various systems.


Idea priority High
  • Guest
    Reply
    |
    Dec 1, 2022
    This enhancement was delivered in December 2022 with IBM i 7.5 PTF Group level 3 and IBM i 7.4 PTF Group level 23.

    New SQL syntax, REMOTE TABLE, was introduced to allow referencing a table function using a 3-part name.

    This enhancement is introduced on this page: https://www.ibm.com/support/pages/node/6828079
    It is described in IBM Documentation here: https://www.ibm.com/docs/en/i/7.5?topic=clause-table-reference
    and here: https://www.ibm.com/docs/en/i/7.5?topic=statement-selecting-data-from-remote-database


    Db2 for i development team
    IBM Power Systems Development
  • Guest
    Reply
    |
    Feb 24, 2022

    The CEAC has reviewed this requirement and recommends that IBM view this as a MEDIUM priority requirement that should be addressed.

    Background: The COMMON Europe Advisory Council (CEAC) members have a broad range of experience in working with small and medium-sized IBM i customers. CEAC has a crucial role in working with IBM i development to help assess the value and impact of individual RFEs on the broader IBM i community and has therefore reviewed your RFE.

    To find out how CEAC help to shape the future of IBM i, see CEAC @ ibm.biz/BdYSYj and the article "The Five Hottest IBM i RFEs Of The Quarter" at ibm.biz/BdYSZT

    Therese Eaton – CEAC Program Manager, IBM

  • Guest
    Reply
    |
    Jan 29, 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.

  • Guest
    Reply
    |
    Jan 18, 2022

    The CAAC has reviewed this requirement and recommends that IBM view this as a medium priority requirement that should be addressed. This would be useful for cross-partition querying.

    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 RFEs on the broader IBM i community, and has therefore reviewed your RFE.

    For more information about CAAC, see www.common.org/caac

    Nancy Uthke-Schmucki - CAAC Program Manager