![]() ![]() ![]() This foundational Master database (in this example) contains all the information that’s on your driver’s license. This unique number is called a Key Field, which is used to connect a flat-file database to other associated databases (called relational databases). Your license contains your name, gender, height, weight, eyes and hair color, address, date of birth, license issue and expiration date, license class.īecause it’s possible to have multiple people with the same name, address, gender, and description (like a father and son), driver’s licenses all have license numbers. For example, your driver’s license is a single record in a flat-file database that resides on a computer at the Department of Motor Vehicles (DMV).
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