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Status Future consideration
Workspace IBM i
Categories Db2 for i
Created by Guest
Created on Jan 9, 2019

RELATED IDEAS

Materialized Query Table functionality

Add capability in SQL to create Materialized Query Tables (MQT) with the following:
1. data initially deferred refresh immediate
2. maintained by system
3. set integrity for (MQT) immediate checked incremental (or Not Incremental)


Use Case:

create table emp as (select e.empno, e.firstnme, e.lastname, e.phoneno, d.deptno,
substr(d.deptname, 1, 12) as department, d.mgrno from employee e, department d
where e.workdept = d.deptno)
data initially deferred refresh immediate

set integrity for emp immediate checked not incremental


Idea priority Medium
  • Admin
    Sabine Jordan
    Reply
    |     Oct 23, 2024

    The CEAC has reviewed this IBM Idea and recommends that IBM view this as a high priority Idea that is important to 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 key role in working with IBM i development to help assess the value and impact of individual IBM Ideas on the broader IBM i community and has therefore reviewed your Idea.

    For more information about CEAC, see https://comeur.org/what-is-ceac/

    Sara Andres Caballero + Sabine Jordan - CEAC Program Managers

  • Guest
    Reply
    |     Feb 26, 2021

    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
    |     Nov 18, 2020

    IBM has received the requirement and is evaluating it. IBM will provide a response after evaluation is complete.

5 MERGED

add the clause REFRESH IMMEDIATE on MQT

Merged
MQT (Materialized Query Table) is a great tool, but on IBM i, the absence of the REFRESH IMMEDIATE clause is a big problem. It would be very useful to be able to update immediately, with the INCREMENTAL option. This would satisfy many needs in the...
over 1 year ago in IBM i / Db2 for i 3 Future consideration
2 MERGED

MQT maintained by system

Merged
MQT is a really good choice to speed up sql analysis. The main problem we are facing is to refresh it without locking. Like in other DB2 implementations for Windows and Unix ( https://www.ibm.com/docs/en/db2/11.5?topic=statements-refresh-table ) i...
3 months ago in IBM i / Db2 for i 1 Future consideration

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