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1 data type
A property of a field that defines the kinds of data the field can store. -
2 Variant data type
"The default data type for variables that don't have type-declaration characters when a Deftype statement isn't in effect. A Variant can store numeric, string, date/time, Null, or Empty data." -
3 Hyperlink data type
A data type for an Access database field that stores hyperlink addresses. An address can have up to four parts and is written using the following format: A data type for an Access database field that stores hyperlink addresses. An address can have up to four parts and is written using the following format: displaytext#address#subaddress#. -
4 scalar data type
"A data type defined as having a predictable and enumerable sequence of values that can be compared for greater-than/less-than relationships. Scalar data types include integers, characters, user-defined enumerated data types, and (in most implementations) Boolean values."دالّة -
5 Object data type
"A fundamental data type representing any object that can be recognized by Visual Basic. Although you can declare any object variable as type Object, it is best to declare object variables according to their specific types." -
6 cursor data type
A special data type used to reference a cursor. -
7 Yes/No data type
"A field data type you use for fields that will contain only one of two values, such as Yes or No and True or False. Null values are not allowed."نوع بيانات نعم/لا -
8 enumerated data type
A data type consisting of a sequence of named values given in a particular order. -
9 Double data type
"A fundamental data type that holds double-precision floating-point numbers. It's stored as a 64-bit number ranging in value from approximately -1.797E308 to -4.940E-324 (negative), from 4.94E-324 to 1.797E308 (positive), and 0." -
10 Long data type
"A fundamental data type that holds large integers. A Long variable is stored as a 32-bit number ranging in value from -2,147,483,648 to 2,147,483,647." -
11 Integer data type
"A fundamental data type that holds integers. An Integer variable is stored as a 16-bit (2-byte) number ranging in value from -32,768 to 32,767." -
12 String data type
"A fundamental data type that holds characters, one character per 2 bytes. A fixed-length string can contain 1 to 64K characters; a variable-length string can contain 1 to 2 billion." -
13 Single data type
A data type that stores single-precision floating-point variables as 32-bit (4-byte) floating-point numbers ranging in value from -3.402823E38 to -1.401298E-45 for negative values and 1.401298E-45 to 3.402823E38 for positive values. -
14 uniqueidentifier data type
A data type containing a unique identification number stored as a 16-byte binary string used for storing a globally unique identifier (GUID).English-Arabic terms dictionary > uniqueidentifier data type
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15 Boolean data type
"A data type with only two passable values, True (-1) or False (0). Boolean variables are stored as 16-bit (2-byte) numbers." -
16 char data type
"A character data type that holds a maximum of 8,000 characters." -
17 OLE Object data type
A field data type that you use for objects created in other applications that can be linked or embedded (inserted) in an Access database. -
18 field data type
A property of a field that defines the kinds of data the field can store. -
19 type inference
A process in which the compiler determines the data type of a local variable that has been declared without an explicit data type declaration. The type is inferred from the initial value provided for the variable. -
20 type checking
"The process performed by a compiler or interpreter to make sure that when a variable is used, it is treated as having the same data type as it was declared to have."
См. также в других словарях:
Data type — For other uses, see Data type (disambiguation). In computer programming, a data type is a classification identifying one of various types of data, such as floating point, integer, or Boolean, that determines the possible values for that type; the … Wikipedia
Data type (disambiguation) — Datatype may refer to: Data type in programming languages Amiga Datatype, the AmigaOS automatic system of recognizing data files See also: Category:Statistical data types This disambiguation page lists articles associated with the same title. If… … Wikipedia
data type — noun a classification or category of various types of data, that states the possible values that can be taken, how they are stored, and what range of operations are allowed on them … Wiktionary
Algebraic data type — In computer programming, particularly functional programming and type theory, an algebraic data type (sometimes also called a variant type[1]) is a datatype each of whose values is data from other datatypes wrapped in one of the constructors of… … Wikipedia
Composite data type — In computer science, a composite data type is any data type which can be constructed in a program using its programming language s primitive data types and other composite types. The act of constructing a composite type is known as composition.… … Wikipedia
Complex data type — Some programming languages provide a complex data type for complex number storage and arithmetic as a built in (primitive) data type. In some programming environments the term complex data type (in contrast to primitive data types) is a synonym… … Wikipedia
Abstract data type — In computing, an abstract data type (ADT) is a specification of a set of data and the set of operations that can be performed on the data. Such a data type is abstract in the sense that it is independent of various concrete implementations. The… … Wikipedia
Decimal data type — Some programming languages provide a built in (primitive) or library decimal data type to represent non repeating decimal fractions like 0.3 and 1.17 without rounding, and to do arithmetic on them. Examples are the decimal.Decimal type of Python … Wikipedia
Generalized Algebraic Data Type — Generalized Algebraic Data Types are generalizations of the algebraic data types of Haskell and ML, applying to parametric types.With this extension, the parameters of the return type of a data constructor can be freely chosen when declaring the… … Wikipedia
Real data type — A real data type is a data type used in a computer program to represent an approximation of a real number.Because the real numbers are not countable, computers cannot represent them exactly using a finite amount of information.Most often, a… … Wikipedia
Ordinal data type — In computer programming, an ordinal data type is a data type with the property that its values can be counted. That is, the values can be put in a one to one correspondence with the positive integers. For example, characters are ordinal because… … Wikipedia
