International Business Machines Corporation

Narendra Kumar Agrawal

Birgit Monika Pfitzmann

Amit Anil Nanavati

Anil K Maddipatla

A method, apparatus, and non-transitory computer readable medium for performing joins on data from hierarchical databases are described. The method, apparatus, and non-transitory computer readable medium may provide for receiving one or more search results from each of a plurality of hierarchical databases, identifying one or more matching fields from each of the search results, joining the search results according to a set of rules for processing related fields to the matching fields, wherein the related fields comprise sibling fields, neighbor fields, ancestor fields, descendant fields, or any combination thereof, and generating one or more combined search results based on the joining.

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Nawapara Chhal, India

Narendra Kumar Agrawal