Geocoding using a relational database

摘要: A geographic data relational database and a spatial library of routines that access analyze are used to convert an identified location set coordinate pairs. geocoder engine applies the in database, based on matching rules, produces coordinates. The may be derived from multiple sources. rules specify, for example, only coordinates corresponding exact match returned, or certain attributes relaxed. be, intersection two streets, address, postal area code such as zip code.