1) pres erve multivalued dependency(preserve MVD)
保持多值依赖
2) keep depende
保持依赖
3) dependency preservation
依赖保持
4) multivalued dependency(MVD)
多值依赖
1.
the definition of preserve multivalued dependency(MVD),alg orithm of preserve multivalued dependency set,algorithm of generated m ultivalued dependency set and algorithm of join tree was presented and provied base on data dependency.
基于数据依赖基本概念给出了保持多值依赖MVD集的定义，提出了构造联接树的算法，生成MVD集与保持MVD集的检验算法，同时对算法给出了证明。
5) multivalued dependency
多值依赖
1.
Algorithm for constructing Armstrong relation in multivalued dependency schema;
多值依赖模式上Armstrong关系的构造算法
2.
The problem of inference rules for multivalued dependency is the key to solve implication problem between dependencies in XML and the key problem of XML normalization theory.
XML多值依赖的推理规则集问题是解决XML数据依赖的蕴涵问题的基础,是XML规范化理论的关键问题之一。
3.
It is based on the normalization theory of functional dependency and multivalued dependency′s concept,the definitions of multivalued dependency′s split and splitfree multivalued dependency set are given,good properties of splitfree multivalued dependency set,the algorithms and conditions of splitfree cover of multivalued dependency are provided.
基于函数依赖规范化理论及多值依赖基本概念,给出了多值依赖的分裂、无分裂多值依赖集等定义,提出了满足无分裂多值依赖集的良好特性,以及无分裂多值依赖集的判定算法,并且提出分裂多值依赖集存在无分裂覆盖满足的条件及其算法。
6) Multivalued dependency (MVD)
多值依赖(MVD)
补充资料：多值函数
多值函数
multi-valued function
多值函数〔m词峪刃血曰ha叨佣;M助。3H绷翻中押叫朋] 一个函数，它使每个元素xoX对应于集合Y的一个子集f(x):f(x)CY，这里至少存在Y的一个这样的子集，其中至少含有两个元素.亦见多值映射伽ulti·丫习比幻mapp吨). 兀，八.Ky月PaB哪B撰张鸿林译
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条