To find all instances of a specific relation code in your database, create a relationship query that checks all Relation or Recip Relation code fields.  For example, to find all individuals who have the relation code Sibling on their record:
  1. Create a relationship query
  2. Filter on:
Individuals, Relation Code equals Sibling
OR Individuals, Recip Relation Code equals Sibling
OR Organizations, Relation code equals Sibling
OR Organizations, Recip Relation code equals Sibling
OR Individuals, Organization Information, Relation Code equals Sibling
OR Individuals, Organization Information, Recip Relation code equals Sibling

When saving the query, it includes only the relationships that meet the criteria.