Identifier

lastmod 2022-02-24created 2015-02-272 edits

An identifier is a name that can uniquely identify and distinguish an object. Identifiers are used internally in every system that handles information, because processing information requires a way to refer to it.

Typical identifiers include URLs, ISBNs, and IP addresses. In databases, one (or more) of the columns is designated as an identifier to identify a specific tuple in a table.

See also

• GUID
• UUID
• Universally Unique Lexicographically Sortable Identifier (ULID)

Favorite site

• Wikipedia (en) article on Identifier