How do you design the database in your web & mobile software projects with a focus on Geographic Information Systems? When storing latitude and longitude data, if you think it should be a float or double because it's a decimal number, you are mistaken. You can keep and utilize location data in a flexible manner (polygon - polyline) using the geography data type in Microsoft SQL Server. I have attempted to explain this topic through practical research; you can read more about it here: https://medium.com/@kadircolak1999/microsoft-sql-server-geography-60d124edbab5.