A formal name used in source code to refer to a variable, function, procedure, package, etc. or in an operating system to refer to a process, user, group, etc
An identifier is a unique value associated with a resource that clients use to name that resource The identifier can be used over any connection to name the resource
Each resource has an ``identifier'', a unique value associated with it that clients use to name the resource An identifier can be used over any connection to name the resource
A character or group of characters used to identify or name an item of data and possibly to indicate certain properties of the data
(1) One or more characters used to identify or name a data element and possibly to indicate certain properties of that data element ANSI (2) In programming languages, a token that names a data object such as a variable, an array, a record, a subprogram, or a function ANSI (3) A sequence of letters, digits, and underscores used to identify a data object or function IBM
One of the three parts of an object name It is a character string used to distinguish the object from other objects of the same type For some designated object types, the identifier conveys meaning of the nature of the object, and the identifier and its meaning are maintained in a dictionary
synonyms: primary key, object identifier A set of attribute value(s) that uniquely identifies one occurrence of an entity-type F ex a social security number uniquely identifies one person In the Object-oriented paradigm: the object identifier, OID, is system generated, i e has no external (to the computer) meaning
1 a string of symbols used to refer to a variable, a method, or a class 2 in Java an identifier can start with any letter (upper or lowercase), an underscore or a dollar sign; the second and subsequent symbols can in addition be digits (0-9)