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 經過30年的發(fā)展,數(shù)據(jù)庫系統(tǒng)已經歷了第一非關系型數(shù)據(jù)庫、第二代關系型數(shù)據(jù)庫( ordbs )的發(fā)展到面向對象數(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)網絡技術的飛速發(fā)展,基于互聯(lián)網的網站數(shù)據(jù)庫技術為信息資源的共享提供了技術上的保障。
In object system of special applied area , object is comparatively more stable than method , we can combine the object oriented frame with the method permanent management , hence at this means realize the permanent management of the object oriented system . this is a perfect application of the theory of the object oriented database system 在專門應用領域的面向對象系統(tǒng)中,面向對象應用框架相對應用對象方法表現(xiàn)的較為穩(wěn)定,將面向對象的應用構架和面向對象方法的持久管理結合起來并作為一個整體出現(xiàn),在這個角度上實現(xiàn)面向對象系統(tǒng)的持久化管理,是面向對象數(shù)據(jù)庫系統(tǒng)應用研究的一個良好案例。
And the designing principle , developing process and realizing concretely of water resource database management system are described in detail in this paper . jining water resources database management system ( jnwrdbms ) is established with advanced computer language and the technique of the database management techniques and using object oriented database management software - access 2002 and in - line vba 采用計算機語言和數(shù)據(jù)庫管理技術,利用面向對象的數(shù)據(jù)庫管理軟件access2002和內嵌的vba ( visualbasicapplication )應用程序語言,開發(fā)建立濟寧市水資源數(shù)據(jù)庫管理系統(tǒng)。