Get the shortest distance from a point

Question

I have this table in sqlite

Locations
ID
Lat ( latitude)
Lon ( longitude) 
Type
Name
City

I have for example 100 records what I need is to

Answer 1

Though this is not a best option.
Let you are trying to figure out shortest distance within N mile/km radious for fixed no of locations/your location table data are not changing regularly.
Add another column Distance_Index (DI) a self multi reference key ArrayType. Once run a procedure and update the DI with ID in ascending order accoording to distance from this DI. Now from next time onwords distance is with you. just make a query to the database and use it.

Now, in your problem no of location are less within N, then DI will not be too much long.Just as an opinion.