functional dependency
功能依赖：在数据库理论中
常用释义
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美式发音
基本释义
- 功能依赖：在数据库理论中，一种表示一个属性集合对另一个属性集合的确定性依赖关系。
例句
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1·And a set of complete inference rules about XML functional dependency is given.然后给出了关于XML文档的函数依赖的一组完备的推理规则集。
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2·The tool will find the deployment order, based on the functional dependency of each resource, for you.该工具会根据资源之间的功能依赖关系来帮您决定部署顺序。
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3·The optimizer will deduce key value selection based on the functional dependency of the column within the row.优化器将根据行中列的函数依赖性来推断关键值选择。
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4·Functional dependency is an important semantic representation both in relational databases and XML documents.函数依赖对关系数据库和XML文档都是一种重要的语义表达。
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5·Finally, the relation between functional dependency and keys for XML documents are also studied in this part.最后还进一步研究了XML文档的函数依赖和键的关系。
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6·The functional dependency theory has a great influence over the design and application of relational database.FD理论对于关系数据库的设计和应用产生了深刻的影响。
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7·There are two forms of functional dependency: absolute functional dependency and relative functional dependency.它可以有两种不同类型的表现形式：绝对函数依赖和相对函数依赖。
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8·The inferable theorem is discussed under the mixed circumstances under fuzzy functional dependency and fuzzy multivalued dependency.讨论了在模糊函数依赖、模糊多值依赖混合作用下的推导公理系统；
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9·According to a group of deduce rules about XML functional dependency, we expand the FD-Set to avoid losing semantics of original XML.该算法以键为基础，根据XML函数依赖的一组推理规则，扩充函数依赖的集合，避免XML模式向关系模式转换过程中语义丢失的情况；
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10·In this paper, we give the two approaches of the definition of XML functional dependency, in which one is based on tree tuples and the other is based on path.本文给出了基于树元组的XML函数依赖和基于路径的XML函数依赖的两种定义方法。