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Status Future consideration
Workspace IBM i
Categories Languages - RPG
Created by Guest
Created on Nov 16, 2016

RELATED IDEAS

Consistent use for null values

See this idea on ideas.ibm.com

Currently there are 3 distinct ways to check if a field is or is not null:
1 - RPG uses %nullind()
2 - SQLRPGLE use a positional numeric array (-1 or <> -1)
3 - RPG triggers use a positional indicator (like) array ('0' - '1')

Having a common access to the null attribute can lead to a simplification.

For case 1 e 3 consider also setting the null attribute using a common interface.


Use Case:

Consider this SQLRPGLE example:

DataDs Ds
Field1
Field2
Field3
Field4

NullInd s 4b 0 dim(4)

exec sql FETCH CURS2 INTO :DATADS:NULLIND;

....

if nullind(3) <> -1;
....
endif;

simply adding or removing a field before Field3 in the DataDs breaks the null test.


Idea priority Medium
  • Guest
    Reply
    |     Apr 29, 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. IBM will use votes and comments from others in the community to help prioritize this request.

  • Guest
    Reply
    |     Aug 25, 2017

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

  • Guest
    Reply
    |     Nov 17, 2016

    Just to let you know that there is a new NULLIND keyword in RPG 7.3 that makes it easier to use the null byte maps in trigger programs. See the trigger-program example about halfway down this page: http://www.ibm.com/support/knowledgecenter/ssw_ibm_i_73/rzasd/dkwnullind.htm

  • Guest
    Reply
    |     Nov 17, 2016

    I would like the option also if a condition statement checks the value of a database field that is null that the result of the condition is false like SQL returns. Not that I want to know if its NULL but the possible value within the field should not be checked if the status is NULL.

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