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SQL Server 2008 has new geo data types. One thing I am wondering though is that if I have a table with geocoded addresses in it, can I write a query to display all records within a certain distance. For example, many websites have the option to search for items within a certain distance such as 50 miles and would like it if SQL 2008 provided this out of the box.
This is exactly the sort of query a spatial index is designed to support. This blog entry gives a quick introduction that includes this type of query.