relational structure 中文意思是什麼

relational structure 解釋
關系結構
  • relational : adj. 有關系的；親戚的；（特指語法上）表示關系的。adv. -ly
  • structure : n. 1. 構造，結構；組織；石理，石紋。2. 建造物。3. 【化學】化學結構。4. 【心理學】（直接經驗中顯現的）結構性，整體性；整體結構。adj. -d ,-less adj.
  1. Third, this dissertation analyzes the complicacy of result size estimation problem for xml structure based query optimization compared to its counterpart in traditionally relational database, and proposes a full - featured result size estimation algorithm for xml query, sxm. for simple path expression query, this dissertation proposes a dynamic synopsis model for xml data based on the concept of f - stable and b - stable, xmap. for complicated path expression query, this dissertation adopts an improved bifocal sampling method for result size estimation

    第三，分析了xml結構化查詢優化中的查詢代價估計問題與傳統關系型數據庫中的查詢代價估計問題的區別，提出了一套完整的xml結構化查詢代價估計體系sxm ，包括對簡單路徑表達進行查詢代價估計的動態xml數據統計模型xmap ，對復雜路徑表達進行查詢代價估計的雙焦點例舉法，以及對值匹配條件進行查詢代價估計的基於小波的多維直方圖方法，並能將多種查詢表達的查詢代價估計結果結合在一起，以給出一個完整的xpath查詢的代價估計。
  2. Data structure in object - oriented relational database

    對象關系數據庫中的數據結構
  3. We introduce detailly the its design ideal, merit, purpose and sql language and so on, then we discuss the problem of the design and implement of the v - ordbms. compared with other products, now, v - ordbms, which we are designing, is based on the relational database system for windows os, it extends the abstract data type, such as array, set, structure etc, we solve the store and all sorts of sql operation for these extended data type. otherwise, in v - ordbms, we provide the solution of how to realize the store of class, inherit, and the mapping of the relation among classes. etc. it provides the visual environment for using

    對比國外的postgresql ， gemstone ， 02等產品，目前我們設計的v - ordbms原型系統是基於windowsos的平臺，以關系數據庫為基礎，在支持傳統數據類型的基礎上擴展了抽象數據類型adt （ abstractdatatype ） ，例如數組、集合、結構等，解決了它們的存儲以及相應的各種sql操作，能夠支持復雜對象，所以它的數據類型豐富。
  4. Utilising dissolved gases analysis, a new insulation fault diagnosis method for power transformers is proposed. this method is based on the group grey relational grade analysis method. first, according to the fault type and grey reference sequence structure, some typical fault samples are divided into several sets of grey reference sequences. these sets are structured as one grey reference sequence group. secondly, according to a new calculation method of the grey relational coefficient, the individual relational coefficient and grade are computed. then according to the given calculation method for the group grey relation grade, the group grey relational grade is computed and the group grey relational grade matrix is structured. finally, according to the relational sequence, the insulation fault is identified for power transformers. the results of a large quantity of instant analyses show that the proposed method has higher diagnosis accuracy and reliability than the three - ratio method and the traditional grey relational method. it has good classified diagnosis ability and reliability

    基於變壓器油中溶解氣體分析，提出了一種基於群灰色關聯度分析的變壓器絕緣故障診斷新方法.首先根據故障類型與灰色參考序列構造，選擇變壓器典型故障樣本構造多組參考序列，這些參考序列組構成一個灰色參考序列群.其次根據給出的新的關聯系數計算方法，計算個體關聯系數和關聯度.然後根據給出的群灰色關聯度計算方法，計算群灰色關聯度和構造群灰色關聯度矩陣.最後根據關聯序識別變壓器絕緣故障診斷.通過大量變壓器絕緣故障診斷實例分析，所提方法診斷準確性與可靠性優於三比值法和傳統的灰色關聯分析方法，具有較好的分類診斷能力和可靠性
  5. Client / server structure system is defined as structure of this system this paper analyzed system structure according to the methodology of object - oriented based relational model

    在關系模型的基礎上部分引入了面向對象的概念，按照第三範式完成數據庫的邏輯結構設計。
  6. Firstly this paper summarized relational literatures on the way of basic theory, study method and conception ; secondly this paper analysed the actuality of allocation for higher schools " s s & t resource according to year 1995 - 2000 < usts > and < ' 00 national r & d resource check data >. then this paper evaluated the allocation actuality by the method of ahp and dea on the directly in - output efficiency and relatively efficiency according t o above analysing. finally this paper optimized the allocation structure by the method of sd. and brought forward the standard of optimizing allocation according to the speciality of s & t resource, and that this paper relevant countermeasures, and offered the decision - making gist for government department

    本論文首先對相關文獻從基礎理論、研究方法和概念方面進行了綜述；其次依據1995 - 2000年教育部每年的《高等學校科技統計資料匯編》 ，以及《 2000年全國r & d清查數據》 ，對河北省高校科技資源配置的現狀，從規模、結構方面，重點對人力資源、財力資源，分別運用層次分析、 dea等方法，從直接投入產出效率和相對效率角度，對配置現狀進行了分析評價；最後根據科技資源配置的特點和基礎理論提出了優化配置的標準，同時運用系統動力學方法對配置結構進行了優化，而且提出了相應的對策，為決策部門提供了可以參考的決策依據。
  7. An ssis transformation can also pivot relational data and transform it into a less - normalized format that is more compatible with the table structure in the data warehouse

    Ssis轉換還可以透視關系數據，並將其轉換為不太規范的格式，以便更好地與數據倉庫中的表結構相兼容。
  8. Our system ' s underlying dbms is relational dbms, but we do n ' t want to modify the structure and the algorithm of the dbms, so we add some module between dbms and code

    由於底層採用的是關系數據庫，但又要避免對底層dbms的復雜數據結構或者演算法做修改，所以我們採用在用戶和數據庫系統中添加一些中間功能模塊的方法來建立一個時態數據庫。
  9. A graphic parameterized method based on relational data structure

    基於幀中繼的綜合業務網路的研究與開發
  10. The organization of data : first, the author introduced the data structure of maplnfo and studied file structures of the data and the mechanism of connection ( especially the connection of graph & data ). then, the author works out the model of the data ' s structure of this system and set up database of classifying land that based on the model of relational database

    數據組織：首先簡要介紹了mapinfo的數據組織結構，研究了構成mapinfo的數據文件結構及連接機制（特別是圖?數連接機制） ；然後在此基礎上設計出系統的數據組織模式，建立了基於關系數據庫模型的土地分類數據庫。
  11. 3 ) presentation and implementation of key - based relational schema reverse reconstruction algorithm ( krr ). based on discrete mathematics theory, a krr algorithm is proposed which can realize the transformation from relational schema to directed graph structure and get a good data preparation for the sequential schema mapping

    3 ）提出基於key的關系模式重構演算法以離散數學理論為基礎，對關系模式數學建模，通過提出基於key的關系模式重構演算法，將關系模式轉化為有向圖數據結構，為模式映射提供基礎。
  12. It is a feasible way to manager spatial objects by utilizing relational database in the gis applications. we have brought to octa - tree index structure for managering spatial data efficiently in relational schema. by space filling curve, z - curve, we mapped rsdd to 1 - dimensional linear sp

    為了在關系模式下有效地對空間數據進行處理，論文提出了八分樹的索引結構，並利用空間填充z一曲線把rsdd空間映射到一維空間，從而建立起了空間對象的索引順序。
  13. Because of its regular structure, relational data is " dense " - that is, every row has a value in every column

    由於其規則結構，關系數據是「密集的」 ，即每一行中的每一列都有一個值。
  14. Firstly we introduced research background and theory foundation. data characteristics of half structure and xml and cscw are simply introduced ; very important critical technology of cooperation work : transform between xml and the relational database is researched deeply secondly. the emphatic questions such as principle and thought are expatiated, and a general transformation rule and realization such as the data abstract, integration and transform are put forward ; as well as we introduced data binding in java environment, and put forward a datachange model which works in cooperation work

    本文首先介紹研究的背景和理論基礎，對xml 、 cscw技術和web的半結構化數據特點做了簡單介紹；接著對數據庫協同工作中的關鍵技術： xml與關系數據庫之間的相互轉換進行了深入的研究，闡述了轉換過程中的原理、思想精髓等重點問題，提出了通用的轉換規則，以及在web數據庫中數據的提取、集成、轉換等實現技術；同時還介紹了在java環境下數據綁定的過程，並提出一個協同數據庫管理系統的模型datachange 。
  15. The construction of social capital in china ' s community has been directly influenced by the cultural tradition and ethics - focused relational net - work structure

    摘要中國社區社會資本的構成受到了文化傳統和倫理本位的關系網路結構的直接影響。
  16. I ve always thought that xml is a great way to define structured data without necessarily flattening it into a relational structure, which can be awkward

    我一直認為xml是種極佳的方法，用以定義結構化數據，而無需笨拙地將之轉化為關系型結構。
  17. If an odbms ( object database management system ) is to be used, there is a direct mapping between structures in the class model and the odbms structure. this is not true for relational databases

    如果使用物件資料庫管理系統，類別模型結構和物件資料庫管理系統結構之間應該可直接進行配對，但對于關系資料庫而言則並不是這樣。
  18. In this paper we discussed the grey relational grade of grey systems theory and defined the synthesis relational grade of grey. we analysed the structure of grain production of kerrchin right middle banner. the results showed it quite objective portrayed the structure and present the development of grain production that was defined the synthsis relational grade of grey

    在討論灰色系統理論中的灰色關聯度的同時，定義了灰色綜合關聯度，並對內蒙古自治區科右中旗糧食生產結構進行了關聯排序和分析，認為定義的灰色綜合關聯度較好地刻劃了該旗糧食生產發展的基本結構和現狀
  19. Professor deng zhenglai tried to explore and deal with relationships between what ought to be and what is, china and western, the chinese nation and world structure via china ' s ideal picture of law with a relational perspective

    摘要鄧正來教授試圖憑借「中國法律理想圖景」經由關系主義視角來探究和處理「應然」與「實然」 、中國與西方，中華民族與世界結構的關系。
  20. The index structure of an object - relational database must be extensible because its type system is

    對象關系數據庫中的數據類型是可擴展的，與此相關的索引結構也應當能夠擴展。
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