# Rack Database Structure: Topology table

This table allows each run to put the racks in its own specified locations. Sets of rack locations are called "topologies", and each has a text name. One is called "default" and represents the topology shown in the rack data editor's station window.

Each named topology has one row here for each rack. The "name" field here links to the "topology" field in runs.

Fields
rack | integer | Which rack this row locates. Links to idx in racks.
location | integer | The location in which this topology places this rack. Links to idx in locations.
name | string | The name of the topology this row is part of.