Working with Junctions on Dataset Boundaries in Shapefile

IDs of Junctions that appear on dataset boundaries have a "10000" prefix in their ID.

Example of a Junction (jc) Shapefile ID:

108400510297093

Example of a Junction (jc) Shapefile ID that appears in the same dataset as above but on a dataset boundary:

100000500141131

In order to find which other dataset(s) the above junction appears in, query the junction (jc) layers for all junctions with an ID prefix of "10000" and dump that ID out along with the alpha country and dataset/tile codes (<ctry><tile>________jc.dbf) from the *jc.dbf files for all tiles. Matching IDs can then be identified for boundary datasets.