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You have a database that tracks orders and deliveries for customers in North America. The database contains the following tables:
Sales.Customers
Application.Cities
Sales.CustomerCategories
Your company is developing a new social application that connects customers to each other based on the distance between their delivery locations. You need to write a query that returns the nearest customer.
Solution: You run the following Transact-SQL statement:
The variable @custID is set to a valid customer. Does the solution meet the goal?
A . Yes
B . No
Answer: B
Explanation:
It is better to use add a WITH … AS statement in this solution.
References: https://blogs.msdn.microsoft.com/isaac/2008/10/22/nearest-neighbors/ https://docs.microsoft.com/en-us/sql/t-sql/spatial-geometry/shortestlineto-geometry-data-type