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How would I perform a find for an empty relationship?

James Gill
in Finding & Searching

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This seems like an easy question but for some reason the solution is escaping me.  Say I have a parent and child table where the parent may not have a related child record.  How would I go about finding all instances of a parent record that does not have a child record?  I can easily find all instances of a parent that DOES have a child record by specifying "*" in the primary id field of the child record but specifying "=" returns no results.

I feel like I'm missing something easy here...

I can easily find all instances of a parent that DOES have a child record by specifying "*" in the primary id field of the child record

And once you've done that, select Show Omitted Only.

  • Author

Ah that makes sense, perform the find on a pre-omitted found set.

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https://fmforums.com/topic/97480-how-would-i-perform-a-find-for-an-empty-relationship/
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