例句與造句

1. Research on geographical relational database model in webgis
   中的地理關(guān)系數(shù)據(jù)庫模型研究
2. Rough relational database model and its relational operations
   關(guān)系數(shù)據(jù)庫模型及其關(guān)系操作
3. Research and implement on relational databases model with special attributes
   草莓保鮮方法研究初報(bào)
4. Are consistent with those in the relational database model
   Dataset中的方法和對(duì)象與關(guān)系數(shù)據(jù)庫模型中的方法和對(duì)象一致。
5. But mapping class hierarchies to a relational database model might prove somewhat difficult
   但是，把類的層次結(jié)構(gòu)映射到關(guān)系數(shù)據(jù)庫模型，可能會(huì)比較困難。
6. It's difficult to find relational database model in a sentence. 用relational database model造句挺難的
7. In the 1970s , the rigorous mathematical work of e . f . codd and others created the now - ubiquitous relational database model
   70年代， e . f . codd與其他一些人通過嚴(yán)格的數(shù)學(xué)工作創(chuàng)造了現(xiàn)在無處不在的關(guān)系數(shù)據(jù)庫模型。
8. This article covers three strategies that you can use in your everyday programming to easily map complex object models to relational database models
   本文將介紹三個(gè)策略，在日常的編程之中您可以用它們把復(fù)雜的對(duì)象模型容易地映射到關(guān)系數(shù)據(jù)庫模型。
9. Abstract : temporal relational database model is extended from relational database by adding time processing ， and temporal object - orient database model is extended from object - orient database by adding time processing
   文摘:時(shí)態(tài)關(guān)系數(shù)據(jù)庫在關(guān)系數(shù)據(jù)庫的基礎(chǔ)上擴(kuò)充了對(duì)時(shí)間數(shù)據(jù)的處理，而時(shí)態(tài)面向?qū)ο髷?shù)據(jù)庫則是在面向?qū)ο髷?shù)據(jù)庫的基礎(chǔ)上擴(kuò)充了對(duì)時(shí)間數(shù)據(jù)的處理。
10. While xml enthusiasts have begun to see everything in the world encoded with xml tags , the relational database model is entrenched and most of the world s digital data is encoded in tables that are composed of rows and fields
    雖然xml的狂熱者可能將世界上的一切都看成是用xml標(biāo)簽編碼的，單關(guān)系數(shù)據(jù)庫模型仍然根深蒂固，世界上大部分?jǐn)?shù)字?jǐn)?shù)據(jù)是用由行和列組成的表來進(jìn)行編碼的。
11. This paper makes use of how to build the object model for the system utilizing object - oriented tecnique in the system implement and the process of the mapping from object model to the relational database model in order to build database
    依據(jù)所提出的產(chǎn)開發(fā)過程模型，說明了基于動(dòng)程的產(chǎn)品開發(fā)建模方法? dmpa 。利用面相對(duì)象技術(shù)建立系統(tǒng)對(duì)象模型的方法，以及對(duì)象模型向關(guān)系數(shù)據(jù)庫的映射，建立數(shù)據(jù)庫。
12. Secondly , we study on how to build the object model for the system utilizing object - oriented technique in the system implement and the process of the mapping from object model to the relational database model in order to build the model of the relational database for the system
    接著，研究了利用面向?qū)ο蠹夹g(shù)建立系統(tǒng)對(duì)象模型的方法，以及對(duì)象模型向關(guān)系數(shù)據(jù)庫的映射過程，進(jìn)而建立了系統(tǒng)的信息模型。
13. In this paper , the basic concepts of rough sets theory and research actuality of combining rough sets theory and relational database is introduced , the efficient algorithm of attributes reduction , correlative definition and algorithm of reduction in database and the rough relational database model is presented
    本文介紹了粗糙集理論的基本概念和它與關(guān)系數(shù)據(jù)庫中的研究現(xiàn)狀,給出了高效的屬性約簡(jiǎn)算法、數(shù)據(jù)庫約簡(jiǎn)的相關(guān)定義和算法、粗糙關(guān)系數(shù)據(jù)模型。
14. Generally , the research of knowledge discovery is based on relational database , database reduction algorithm based on relational database directly obtains core of database , attributes reduction and rule reduction by operator in relational database . it is a simple and effective . essentially , rough relational database model in this paper , which extending classical rough sets model , is a multi - valued information system
    知識(shí)發(fā)現(xiàn)研究的實(shí)施對(duì)象多為關(guān)系數(shù)據(jù)庫,基于關(guān)系數(shù)據(jù)庫操作的數(shù)據(jù)庫約簡(jiǎn)算法利用關(guān)系數(shù)據(jù)庫的操作算子直接對(duì)數(shù)據(jù)庫進(jìn)行求核、屬性約簡(jiǎn)和規(guī)則約簡(jiǎn),該方法充分發(fā)揮數(shù)據(jù)庫操作的簡(jiǎn)便高效性,使得數(shù)據(jù)庫約簡(jiǎn)算法簡(jiǎn)單易實(shí)現(xiàn)。
15. The definition of multi - valued information system is extended and the spatial structure of rough relational database model is analyzed in this paper . the measurement of uncertainty in rough database is provided . by analysis of the spatial structure of rrdb , the upper approximation , the lower approximation and value - reduced is educed . it provides the foundation for more studies in rough relational database model
    本文分析了粗糙關(guān)系數(shù)據(jù)庫模型的空間結(jié)構(gòu),為粗糙數(shù)據(jù)庫的不確定性進(jìn)行度量提供一個(gè)依據(jù),同時(shí)通過對(duì)粗糙關(guān)系數(shù)據(jù)庫空間結(jié)構(gòu)的分析,導(dǎo)出了基于粗糙關(guān)系數(shù)據(jù)庫的上、下近似以及值約簡(jiǎn),為粗糙關(guān)系數(shù)據(jù)庫模型的進(jìn)一步研究提供了理論基礎(chǔ)。