值索引 meaning in Chinese
occurrence index
Examples
- To set a position in an array by supplying the index of the value and then the next value by using code such as the following
设置数组中的某个位置（通过提供值索引） ，然后通过使用下列代码设置下一个值： - The combination of the subtree - based storage model with the document - based to ensure the efficiency and integrality of the data retrieval for all sorts of heterogeneous and context mixed data to the fullest extent ; 2 . dynamically branching and merging combined with the data mapping mechanism , supports the xml document efficiently and can improve the operation capability of the system to some extent ; 3 . referring to the characteristic of xquery , it presents a new operation language for xml data , xqul , which supports the query operation as well as the update operation on xml ; 4
本文提出了一套较为通用的非结构化信息的nativexml文档存储访问策略和实现方案作为对非结构化信息存取机制研究的探索和尝试,主要包括下列理论及技术: 1 .基于子树和基于文档的存储模式相结合,以最大程度保证底层各类形式异构和内容混杂的数据存取的有效性和完整性; 2 .动态分枝合成技术和数据映像机制的引入,实现对xml文档的有效支持,并在一定程度上提高系统处理性能; 3 .结合xquery查询语言特点,提出一种新型xml数据操作语言xqul ,支持xml数据的查询以及更新操作; 4 .三种索引(文档索引、结构索引、值索引)的建立,为xml数据提供从站点到文档,从文档到元素的多级访问策略。