object database schema 中文意思是什麼
object database schema
解釋
對象數據庫方法-
Firstly, it presents the storing arithmetic based on the mapping policy between xml data modal and object - oriented modal. reference to the arithmetic of extracting object - oriented database schemas from xml dtds using inheritance and other commercial tools for xml storing, it improves mapping policy from xml to object, which optimizes the new semantic classes, what ' s more, it present object clustering policy to resolve the uncertainty of xml schema and the complexity of information intergration, which simultaneously focuses on the semanteme and structure of new object classes. on the other hand, it presents method to realize exchanging from object to xml
本文研究構造基於xml信息集成系統結構的面向對象數據庫包裝器，提出面向對象數據庫包裝器的系統結構；根據該結構提出xml的數據模式與面向對象數據庫對象數據模式的映射策略及相互存儲轉化演算法，一方面我們借鑒基於dtd模式的繼承對象映射提取演算法及各種商業工具，提出dtd簡化演算法和基於dtd簡化結構的對象圖映射演算法，優化了生成的對象類、提高了對象類的語義表達能力，也改進了對象映射提取策略；同時採用模糊聚類策略，提出對象聚類處理演算法，改善了xml語義定義的隨意性給對象類提取及信息集成帶來的復雜性；另一方面本文提出對象到xml的轉化演算法，採用系統自動定義對象到xml的轉化方法實現對象到xml的轉化處理。 -
This radar database system fits for china ' s radar network using object - oriented programming design method, recording some important parameters of radar data : the longitude, latitude of radar station, radar type, radar wavelength, radar data format, weather kind ( kind of intensity radar echo, schema of velocity radar, echo shape ) embodying in the radar data, etc. it also records the weather course information embodying in a series of relational radar data : the beginning time of weather course, the ending time of weather course, weather type, etc and the disk information, including recording time, recording contents, recording data number and weather type, etc. above all, this system realizes some basic operational processing : adding, deletion, updating, query of records and also some assistant functions : exportation, data transformation, displaying, backing up of data
該數據庫系統採用面向對象程序設計方法，用visualc + + 6 . 0作為應用程序的前端開發工具，用microsoftaccess2000做數據庫，不僅實現了對雷達基數據信息的一些基本操作：記錄信息添加、刪除、修改、查詢，還實現了處理、分析雷達基數據所需的一些操作：數據導出，數據格式轉換、數據回顯（圖像方式和動畫方式） 、數據壓縮、備份等，另外針對日前雷達臺站存儲雷達數據的現狀，還實現了對存儲光盤的管理。 -
First, you map an xml schema a dtd, in this case to an object schema ; then you map the object schema to the database schema
首先將xml模式（這里使用dtd ）映射到對象模式，然後將對象模式映射到數據庫模式。 -
Returns the database object identification number of a schema - scoped object
返回架構范圍內對象的數據庫對象標識號。 -
Specially, we have researched the topological relation between ros and the measurement of ros. object - relational database technique is a mature database technique, in the chapter 4, we have investigated the technology that using relational schema manager spatial objects, and given a general method or strategy
對象關系數據庫是較為成熟的數據庫技術，我們在第四章中研究了利用對象關系數據庫處理空間對象的技術，給出了在關系模式中處理空間對象的一般思路和方法，為地理信息系統的有效應用提出了一種切實可行的辦法。
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