relate key : The common set of columns used to relate two attribute tables.
relate key). Each record in one table is connected to those records in the other table that share the same value for the common item. Compare with relational join. relate key The common set of columns used to relate two attribute tables.
An operation that establishes a temporary connection between corresponding records in two tables using an item common to both (i.e., relate key).
At the same time the maps are marked-up, coding sheets are filled out with the attributes of the features to be captured and a unique id number is assigned to both the feature and the coding sheet to create a relate key.
 See also: Label point, Latitude, Survey, Elevation, Planar Coordinate System
  
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