CONFIG is an optional parameter that provides you with a way to specify whether you want to use the street address, state-supplied, GeoTAX Auxiliary, or User Auxiliary database during matching. (NOTE: The Landmark Auxiliary file does not need to be configured for matching as long as it is installed in the Database [db] folder.) The CONFIG parameter record also allows you to enable a number of matching features and options (use the corresponding link in the list below to find detailed information on the feature):
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First Letter Expanded Option - Missing and wrong first letter matching.
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Street Centroid Option - Using street locator geocoding.
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Address Range Option - Matching address ranges.
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Alternate Lookup Option - Specifying an alternate lookup method using firm names.
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Address Match Mode - Using GeoTAX match modes.
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Fallback Geographic Option - Specifying a fallback geographic centroid search.
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Search Area Option & Expanded Distance Radius - Search area designation.
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Cache Size - Setting relative cache size to optimize performance.
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Address Point Interpolation Option - Using address point interpolation.