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  4. SQL report question - determine parent

SQL report question - determine parent

Added by Mike McEldowney almost 4 years ago

I'm trying to develop a report directly from the "openproject" Postgresql database for workpackages.  How should I determine the parent workpackage for a particular workpackage in SQL?


Replies (1)

RE: SQL report question - determine parent - Added by Oliver Günther almost 4 years ago

Hi Mike,

The parent of a work package as all other relations are modeled through the relations table as a direct acyclic graph

To get the immediate parent, use this SQL:

SELECT * FROM relations WHERE to_id = <ID of the child> AND hierarchy = 1

Best

Oliver

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