FdoPhysicalElementMapping is an abstract class that acts as a base class for all Physical Schema Mapping Override classes. FDO also provides a number of sub-classes for particular types of Provider-specific override classes:.
FdoPhysicalClassMapping: All classes corresponding to Feature Classes must be based on FdoPhysicalClassMapping.
FdoPhysicalPropertyMapping: Must be the base for all classes corresponding to Properties.
FdoPhysicalSchemaMapping: Must be the base for all types of schema override sets.
Other types of schema override classes can be based directly on FdoPhysicalElementMapping.
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