理学 数据库系统 释 data model 数据模型 数据库领域中定义数据及其操作的抽象表示方式。数据模型是数据库系统的核心和基础。各种数据库管理系统（DBMS）软件都是基于某种数据模型的。
data model 数据模型
数据库 数据库理论 释文 data model 数据模型
- recording-broadcasting system
- recording density
- recording Doppler comparator
- recording electrode
- recording engineer
- recording equipment
- recording flowers in Luoyang
- recording instrument
- recording instruments
- recording micrometer
- recording microphotometer
- Recording of Loyal Persons
- recording program of drama and quyi
- Recording report
- recording studio
- record linkage
- Record of a Cart Full of Ghosts
- Record of a Chance Encounter in a Fishing Village
- Record of a Compilation of Painters of the Reigning (Qing) Dynasty, Continued
- Record of a Dream Journey across Oceans, Halls and Cities by Yang Weizhen
- Record of a Golden Lock
- Record of a Trip to Jianzhou
- Record of Authentic Traces of the Brush
- Record of Baiyun Taoist Temple
- Record of Buddhist Kingdoms