We have a spatial table (dbo.Map) with eleven polygons representing eleven regions. This table has unique IDs, names, and other meta data associated with it, as well as a geography data-type column called geo. We also have a separate table (dbo.points) with a list of points with their lat/longs that are in the regions defined by the first table. The two tables don't have anything to join them on, unless we are able to join a lat/long to a geography column. How can we return a list of all the points in a given region?
Verify a lat/long coordinate is in a SQL spatial table on geography column
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Here's how I'd do it:
First, I have to infer your schema. I'll choose something like this:
Next, the select:
You'd probably want to add some sort of where clause, but that's the bare bones "how do I find which region my point is in?".
Also note that the points table has a persisted computed column that is a geography instance that represents the point given by the Longitude and Latitude columns. This is good for a couple of reasons:
abs(Latitude) > 90
) data into Latitude and Longitude.