Study and improvement of mls relational data model 多級安全關(guān)系數(shù)據(jù)模型研究及其改進
So just what is the relationship between xml and the relational data model 那么xml與關(guān)系數(shù)據(jù)模型之間的關(guān)系究竟是怎樣的?
Poor construction of the relational data model can lead to scalability issues 不佳的關(guān)系數(shù)據(jù)模型結(jié)構(gòu)可能導(dǎo)致可伸縮性問題。
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。
The relational data model and use of the sql language allows for enterprise level performance and scalability 關(guān)系數(shù)據(jù)庫模型和sql語言的使用必須考慮到企業(yè)級性能和可伸縮性。
The importance of order in xml contrasts sharply with the absence of intrinsic order in the relational data model Xml中次序的重要性與關(guān)系數(shù)據(jù)模型中缺少固有次序形成了鮮明對比。
It systems organize meanings using relational data models , flat files , object - oriented models , or proprietary data models It系統(tǒng)用關(guān)系數(shù)據(jù)模型、扁平文件、面向?qū)ο竽P突驅(qū)S玫臄?shù)據(jù)模型來組織意義。
Data is the basis of sanulation . relational data model and ~ al datu modl are described , and its realhation is discussed , too 數(shù)據(jù)是仿真的基礎(chǔ),本文對關(guān)系數(shù)據(jù)與空間數(shù)據(jù)模型進行了描述,并討論了它們的實現(xiàn)。
From time to time , the demands of changing business needs require that you add new entities and relationships to the relational data models or object - oriented models 變化的業(yè)務(wù)需求不斷地要求向關(guān)系數(shù)據(jù)模型或面向?qū)ο竽P椭刑砑有聦嶓w和關(guān)系。
Since the data warehouse is still mostly in a relational data model style , it is best to advise your customer to build business reports from data marts 因為數(shù)據(jù)倉庫幾乎仍然都是關(guān)系數(shù)據(jù)模型類型的,所以最好是建議您的客戶從數(shù)據(jù)集市構(gòu)建業(yè)務(wù)報表。