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Status Future consideration
Workspace IBM i
Categories Db2 for i
Created by Guest
Created on Jan 15, 2018

ALTER SEQUENCE: ALLOW SUBSELECT

It would helpful to use an expression like a subselect with DDL, such as:

alter sequence XYZ.SEQ1
restart with (select max(ID) + 1
from XYZ.TAB1)


Use Case:

It is common to add rows to a table. If one of the columns is not an identity column but instead an integer that is keeping track of the sequence number then it's not as easy as it could be to add rows.

It would be nice to create a sequence and then alter the sequence so the start value is the maximum + 1 of the existing data.

Then I can insert data using the next value of the sequence.

Currently, we have to write a compound statement to do this.


Idea priority Medium
  • Guest
    Reply
    |
    Oct 19, 2020

    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.