Username vs User ID
Summary: Difference Between Username and User ID is that a user name is a unique combination of characters, such as letters of the alphabet and/or numbers, that identifies a specific user. While user ID, is a unique combination of characters, such as letters of the alphabet or numbers, that identifies one specific user.
Username
A user name is a unique combination of characters, such as letters of the alphabet and/or numbers, that identifies a specific user. In an Internet e-mail address, an @ (pronounced at) symbol separates the user name from the domain name. Your service provider supplies the domain name. A possible e-mail address for Kiley Barnhill would be [email protected], which would be read as follows: K Barnhill at e site dot com. Most e-mail programs allow you to create an address book, or contacts folder, which contains a list of names and e-mail addresses.
User ID
A user ID, is a unique combination of characters, such as letters of the alphabet or numbers, that identifies one specific user. Like an ID can be as 55211, a combination of numbers that can use to identify a user. Many users select a combination of their first and last names as their user name. A user named Henry Baker might choose 54321 because Henry and Baker both contains 5 digits.
Also Read:
Difference Between Username and Email Address
Difference Between Username and Password
Difference Between Username and Screen Name
Difference Between Instant Messaging and Text Messaging
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