DBM 384 Week 3 Spatial Databases

Select and complete one of the following assignments.

Option 1: Temporal Hands-On

You have been tasked with creating a SQL Function that will take as input latitude and longitude and will return the distance between the two points in miles.

As you develop this function, consider the following:

Microsoft®SQL Server® now provides a geography type. You can set a location on the globe into this type of variable using the following approach: geography::Point(lat,long,4268).

Further, Microsoft®SQL Server® provides a function STDistance() that can be used to calculate the distance between two geographic points.

Submit the CREATE FUNCTION script used to perform this calculation.

Option 2: Spatial Presentation

Createa 7- to 10-slide Microsoft® PowerPoint® presentation and address the following:

• What does a spatial database store? How does it store it?
• How is SQL used to retrieve information from a spatial database?
• Explain what observer functions are and their role in a spatial database. Provide examples.

Include a cover page, speaker notes, and at least three references.