Data returned from a 'join' between two tables.

JPEG of Navvy 2.1 Data Tree

Data from two linked tables is arranged in a hierachical way, so the master record is on the left and all related detail records are to the right. In this case, the master record is the country, and all of the cities are arranged to the right of their country.
It is easy to see the groupings of countries and their cities.
Technical users:The Navvy concept favours this hierarchical display as being more logical. In a traditional join query the same data is repeated, which is misleading. The hierarchical arrangement is easier from a visual point of view. When the data is saved out as XML, the hierarchical display is replicated in the XML.