Data query based on object - oriented data model 基于面向?qū)ο髷?shù)據(jù)模型的數(shù)據(jù)查詢
Research on and design of electronic map adopting object - oriented data model 采用面向?qū)ο髷?shù)據(jù)模型的電子地圖的研究與設(shè)計
Relational data model and object - oriented data model are prevalent now 目前流行的通用數(shù)據(jù)模型主要是關(guān)系數(shù)據(jù)模型和面向?qū)ο髷?shù)據(jù)模型。
Xml data model is hopeful to be a coordinate with relational and object - oriented data model Xml數(shù)據(jù)模型有望成為與關(guān)系模型、對象模型并立的數(shù)據(jù)模型。
The most suitable diagram for my purposes here is the class diagram , which represents an object - oriented data model 這里最適合的是類圖,類圖表示面向?qū)ο蟮臄?shù)據(jù)模型。
A multi - tier , object - oriented data model is developed in response to complex requirements of urban transit system 摘要基于面向?qū)ο蟮慕9ぞ撸O(shè)計了滿足復(fù)雜環(huán)境需求的多層次公交數(shù)據(jù)模型。
As a result , spatio - temporal object - oriented data model and moving object data model behave more strongly in the expressions of the spatio - temporal objects 結(jié)果表明,面向?qū)ο髷?shù)據(jù)模型和移動對象數(shù)據(jù)模型在時空對象的表達(dá)上體現(xiàn)了較強的能力。
On the way to making a point about how xml is best suited to work with databases , david mertz discusses how xml fits with hierarchical , relational , and object - oriented data modeling paradigms 在證明xml最適合于配合數(shù)據(jù)庫使用的過程中, david mertz討論了xml是如何適應(yīng)層次、關(guān)系和面向?qū)ο髷?shù)據(jù)建模范例的。
The object - oriented data model is transformed to relationship data model by means of the translation of relationship tables in oodbms to conventionally data definition language in rdbms 在設(shè)計階段,通過將面向?qū)ο笾械年P(guān)系表用傳統(tǒng)關(guān)系數(shù)據(jù)庫的數(shù)據(jù)定義語言來描述,從而實現(xiàn)了面向?qū)ο髷?shù)據(jù)模型向關(guān)系型數(shù)據(jù)模型的轉(zhuǎn)換。
The mapping between global schema , export schema and local schema is presented based on the model , which solves the problem of mapping between jidm and relational data , xml files , object - oriented data model 在該模型的基礎(chǔ)上,介紹了全局模式、輸出模式以及局部模式之間的映射關(guān)系,解決了jidm模型與關(guān)系模型、 xml文件以及面向?qū)ο竽P椭g的映射問題。