relational database operation 中文意思是什麼

relational database operation 解釋

關系數據庫操作

relational : adj. 有關系的；親戚的；（特指語法上）表示關系的。adv. -ly
operation : n 1 動作，行動，活動；業務，工作；作用。2 效果，效力；有效范圍，有效期間。4 【數學】運算；【醫學...

例句

We introduce detailly the its design ideal, merit, purpose and sql language and so on, then we discuss the problem of the design and implement of the v - ordbms. compared with other products, now, v - ordbms, which we are designing, is based on the relational database system for windows os, it extends the abstract data type, such as array, set, structure etc, we solve the store and all sorts of sql operation for these extended data type. otherwise, in v - ordbms, we provide the solution of how to realize the store of class, inherit, and the mapping of the relation among classes. etc. it provides the visual environment for using

對比國外的postgresql ， gemstone ， 02等產品，目前我們設計的v - ordbms原型系統是基於windowsos的平臺，以關系數據庫為基礎，在支持傳統數據類型的基礎上擴展了抽象數據類型adt （ abstractdatatype ），例如數組、集合、結構等，解決了它們的存儲以及相應的各種sql操作，能夠支持復雜對象，所以它的數據類型豐富。
Based upon application background, this thesis firstly analyses the requirements of rail - track engineering gis. then the data contents, data classification, data format, coding and layout of spatial data ( digital map ), are worked out and discussed. according to the specific equipment characteristics, operation requirements and relational database features, the corresponding coding rules are made

本碩士論文基於這一應用背景，首先對鐵路工務gis需求進行了分析，規劃了鐵路工務地理信息系統的數據內容、數據分類和數據格式，對空間數據（數字地圖）的分類、編碼和分層進行了詳細討論，並按照設備特點、業務需求以及關系數據庫要求建立了數據結構，制訂了相應的編碼規則。

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