jxq
作者jxq·2022-12-13 14:04
其它·gbase

标准数据库技术词汇之ISO/IEC 9075-2(5)

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前言
ISO/IEC 2382(1)
ISO/IEC 2382(2)
ISO/IEC 2382(3)
ISO/IEC 2382(4)
ISO/IEC 2382(5)
ISO/IEC 2382(6)
ISO/IEC 2382(7)
ISO/IEC 2382(8)
ISO/IEC 2382(9)
ISO/IEC 2382(10)
ISO/IEC 2382(11)
ISO/IEC 2382(12)
ISO/IEC 2382(13)
ISO/IEC 9075-1(1)
ISO/IEC 9075-1(2)
ISO/IEC 9075-1(3)
ISO/IEC 9075-2(1)
ISO/IEC 9075-2(2)
ISO/IEC 9075-2(3)
ISO/IEC 9075-2(4)

ISO/IEC 9075-2(5)

JSON text
sequence of JSON tokens, which must be encoded in Unicode [Unicode] (UTF-8 by default); insignificant white space may be used anywhere in JSON text except within strings (where all white space is significant), numbers, and literals
JSON文本
JSON令牌的序列,必须以Unicode编码(默认为UTF-8);除了在串、数和文字内之外,无意义的空格可以在JSON文本中任何位置使用

JSON text fragment
substring of a JSON text that conforms to any BNF non-terminal in [RFC7159]
JSON文本片段
符合任何BNF非终止符的JSON文本的子串

JSON token
one of six structural characters (“{”, “}”, “[”, “]”, “:”, “,”), JSON strings, JSON numbers, and JSON literals
JSON令牌
六个结构字符( “{” , “}” , “[” , “]” , “:” , “,” )之一、JSON串、JSON数和JSON文字

JSON value
JSON object, JSON array, JSON number, JSON string, or one of three JSON literals
JSON值
JSON对象、JSON数组、JSON数、JSON串,或三个JSON文字之一

monadic (of operators, functions, and procedures)
having exactly one operand or parameter
Note 1 to entry: An example of a monadic arithmetic operator in this part of ISO/IEC 9075 is “-”, specifying the negation of the operand. An example of a monadic function is CHARACTER_LENGTH, specifying the length in characters of the argument.
(操作符、函数和过程)一元的
只有一个操作数或参数
注: 例:“-”是一元操作符,规定对操作数取反。

most specific type (of a value)
unique data type of which every data type of that value is a supertype
(值 的)最特定类型
唯一数据类型,该值的每个数据类型都是超类型

mutator function
dyadic, type-preserving SQL-invoked function implicitly defined by the definition of an attribute of a structured type that, when invoked, modifies the value of the attribute with which it is associated
变值函数
二元的、类型保留的SQL调用函数,结构化类型的属性定义隐式地定义该函数,调用该函数时,修改与其相关的属性值

n-adic operator
operator having a variable number of operands (informally: n operands)
Note 1 to entry: An example of an n-adic operator in this part of ISO/IEC 9075 is COALESCE.
n元操作符
具有可变数量操作数(非正式地:n个操作数)的操作符

niladic (of functions and procedures)
having no parameters
(函数和过程)无参的
没有参数

observer function
monadic SQL-invoked function associated with an attribute of a structured type that, when invoked, returns the value of the attribute with which it is associated
Note 1 to entry: The observer function is implicitly defined by the definition of the attribute.
观察函数
与结构化类型的属性 相关的一元SQL调用函数,调用该函数时,返回与其相关的属性值
注: 由属性的定义隐式地定义观察函数。

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