AMA: Match a blank field in J1QL

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AMA is an ongoing series published each Thursday, highlighting questions the community has asked in our support and how-to channels on Slack. If you haven't already done so, please join us on Slack

 

"How does one match a blank field in J1QL? "

--Question from Kenneth on the J1 Community Slack

Here's the full question from Kenneth:

How does one match a blank field in J1QL? Like...

WITH personal.email = ""

 

Answer from JupiterOne Team

Hi Kenneth.  If the value is unassigned, you can filter using: = undefined

You can also use multiple conditions. As an example, if you want to find actual empty strings in addition to when the field is missing, or if it's set to a blank value, you can use  something like ...
= (undefined OR "" OR " ")
 
 If you negate the equality, remember to invert your logical operators, like ...
!= (undefined AND "" AND " ")
 
 To highlight a slightly more useful case of this syntax, suppose you want to find everyone except a certain group of people ...
FIND Person
WITH
email = (
"person.one@domain.com" OR
"person.two@domain.com"
)
 
or, if you want to find everyone except certain people ...
FIND Person
WITH
email != (
"person.one@domain.com" AND
"person.two@domain.com"
)

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