branching mechanism 中文意思是什麼
branching mechanism
解釋
支化機理-
The definition of three indexes of document, structure and value provides a multilevel access strategy for xml data from the site to the document and then to the element. during the program of “ the research of web storage system based on xml ” supported by the educate department of hubei province, guided by the theories above, we also used some correlative technology of java and xml and partly realized the dbns ( dynamic branching and mapping mechanism for native xml storage system ) model
最後，筆者在參與湖北省教育廳科研資助項目? ? 「基於xml的web存儲系統研究」的開發過程中，以上述技術理論為指導，結合java及xml相關技術，初步實現了本文所提出的dbns （ dynamicbranchingandmappingmechanismfornativexmlstorage ）系統模型。 -
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
本文提出了一套較為通用的非結構化信息的nativexml文檔存儲訪問策略和實現方案作為對非結構化信息存取機制研究的探索和嘗試，主要包括下列理論及技術: 1 .基於子樹和基於文檔的存儲模式相結合，以最大程度保證底層各類形式異構和內容混雜的數據存取的有效性和完整性; 2 .動態分枝合成技術和數據映像機制的引入，實現對xml文檔的有效支持，並在一定程度上提高系統處理性能; 3 .結合xquery查詢語言特點，提出一種新型xml數據操作語言xqul ，支持xml數據的查詢以及更新操作; 4 .三種索引（文檔索引、結構索引、值索引）的建立，為xml數據提供從站點到文檔，從文檔到元素的多級訪問策略。
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