Indexes are simply set up for performance reasons on the most popularly queried relationships among data sets. All of the relationships may not be explicity mapped for the exact same performance reasons or system contraints. Knowing or not knowing of an existing relationship is soley the perspective of the individual performing the query at the time. Querying or Mining...is in the eye of the beholder.
Slashdot Mirror
Indexes are simply set up for performance reasons on the most popularly queried relationships among data sets. All of the relationships may not be explicity mapped for the exact same performance reasons or system contraints. Knowing or not knowing of an existing relationship is soley the perspective of the individual performing the query at the time. Querying or Mining ...is in the eye of the beholder.