Primary key
pancakes
unique identifier!!
a unique item identifier means what?
A Media Access Control (MAC) address is used as a unique identifier for network interface cards (NICs). Each device connected to a network has a unique MAC address assigned by the manufacturer.
it's called the SSID (service set identifier)
A product key is a unique 25-character alphanumeric identifier that you need in order to get access to what ever you are wanting to access. hope this was useful :)
This field is usually called the primary key field
The primary key is the designation given to the field or fields that make a record unique in a table. Often times in Access an autonumber field is used as the primary key because Access will always generate a unique number for each record. Having a primary key is not a requirement but it is highly recommended that you have a primary key in each table.
The DOI (Digital Object Identifier) associated with an ISBN (International Standard Book Number) is a unique identifier that helps locate and access a specific digital version of the book online.
An ISBN is a unique identifier for books, while a DOI is a unique identifier for digital documents and research articles.
Media Access Control address (MAC address) is a unique identifier assigned to most network adapters or network interface cards (NICs) by the manufacturer for identification.
unique identifier