0
votes
2answers
83 views

DB Design Payments Table

I'm working on a Desktop application that uses a DB to store information i.e (customers, houses, proprietors, payments). So the application must accept payments from customers to company, company to ...
7
votes
2answers
1k views

How do Application Like Yelp Retrieve distance information from data base efficiently

For example, say I have a table: Business(BusinessID, Lattitude, Longitude) All are indexed of course. Also there are 1 million records Say I want to find businesses closest to 106,5, for example, ...