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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:
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