A rule mechanism for an object - relational database management system 關(guān)系模型的規(guī)則機制
On the implementation methods of object - relational database 對象關(guān)系數(shù)據(jù)庫系統(tǒng)實現(xiàn)方法的研究
Xml storage techniques in object - relational databases 很多現(xiàn)代關(guān)系數(shù)據(jù)庫管理系統(tǒng)對其產(chǎn)品進行擴展以支持
Your persistence layer , an object - relational database , includes familiar abstractions like 持久層是一個對象關(guān)系數(shù)據(jù)庫,它包括像
As a large scale object - relational database management system , oscar also provides these two methods 作為一種大型的對象關(guān)系型數(shù)據(jù)庫管理系統(tǒng), oscar也采用了這兩種方法。
The index structure of an object - relational database must be extensible because its type system is 對象關(guān)系數(shù)據(jù)庫中的數(shù)據(jù)類型是可擴展的,與此相關(guān)的索引結(jié)構(gòu)也應當能夠擴展。
Db2 udb is an object - relational database server that provides a solid foundation to achieve high performance and scalability Db2 udb是一個對象-關(guān)系數(shù)據(jù)庫服務器,為取得高性能和可伸縮性提供了堅實的基礎(chǔ)。
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(guān)系數(shù)據(jù)庫是較為成熟的數(shù)據(jù)庫技術(shù),我們在第四章中研究了利用對象關(guān)系數(shù)據(jù)庫處理空間對象的技術(shù),給出了在關(guān)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(tǒng)的有效應用提出了一種切實可行的辦法。
Our vision is to manager 3d spatial objects by relational database management system and to manipulate the 0 - dimensional object , 1 - dimensional , 2 - dimensional , and 3 - dimensional in unifiable manner . we employ the mature technology of object - relational database in existence to solve some complex problems of spatial operations efficiently 研究中,我們把三維空間中的0維對象、 1維對象、 2維對象和3維對象納入了統(tǒng)一的處理框架,為利用現(xiàn)有的數(shù)據(jù)庫技術(shù)處理復雜的地理數(shù)據(jù)探索出一條可行的途徑。
In the past 30 years , the database system has already developed the no relational model , the next generation object - relational database system ( ordbs ) , the third generation object oriented database system ( oodbs ) . in the 1990s later , for the speed of the internet technique , the website base based on the internet promoted the information resource share 經(jīng)過30年的發(fā)展,數(shù)據(jù)庫系統(tǒng)已經(jīng)歷了第一非關(guān)系型數(shù)據(jù)庫、第二代關(guān)系型數(shù)據(jù)庫( ordbs )的發(fā)展到面向?qū)ο髷?shù)據(jù)庫系統(tǒng)( oodbs )和各種專業(yè)數(shù)據(jù)庫。九十年代后由于互聯(lián)網(wǎng)絡技術(shù)的飛速發(fā)展,基于互聯(lián)網(wǎng)的網(wǎng)站數(shù)據(jù)庫技術(shù)為信息資源的共享提供了技術(shù)上的保障。