I need to select sample rows from a set. For example if my select query returns x rows then if x is greater than 50 , I want only 50 rows returned but not just the top 50 but 50 that are evenly spread out over the resultset. The table in this case records routes - GPS locations + DateTime.
I am ordering on DateTime and need a reasonable sample of the Latitude & Longitude values.
Thanks in advance
[ SQL Server 2008 ]