Question

Handling nulls in MDA calculated fields

  • 17 October 2018
  • 3 replies
  • 66 views
dale_parent
Userlevel 2
I have a use case to treat nulls as zero on a calculated field in MDA.  It's simply A-B=C and in 25% of cases B is null.  In those cases I would like to end up with C=A but there doesn't seem to be an option to treat null as zero in MDA calculated fields.  Is this feature on a roadmap by any chance?
It's also worth mentioning in this data set the nulls in B need to stay null for downstream logic.

3 replies

pele
Rank
Userlevel 5
Badge +3
Hi Dale, 

Pretty sure you can get to this by using the Advanced Formula option for your calculated field. I think something like the following should work:

case when B is null then A else A-B end

Hope this helps!

Cheers,
Pele
sai_ram
Rank
Userlevel 7
Badge +2
Hi Dale,

 

Could you please use the default value option. It can be done while creating the field or we can edit the field and add the default value. 

 

 

dale_parent
Userlevel 2
Hi Sai Ram,

While the default value option is a great solve for some cases I can't use it in this case. The null value indicates a unique condition we use to trigger a specific customer communication workflow, while a zero value indicates a reporting error in need of attention internally. The advanced formula does what we need for these conditions.

Thanks to both of you for your helpful suggestions

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