| 释义 |
hierarchical data base
分层［层次型］数据库;［阶组资料库］
A data base that is organized in the form of a tree structure in which each record or sector has only one owner, that represents how the records or segments are interrelated, and predetermines the access paths to data stored in the base.
一种按树型结构设计的数据库,其中每个记录或段只有一个拥有者,该数据库描述记录之间或段之间的相互关系,并预先确定数据库中所存数据的存取路径。
参阅network data base, relational data base。 |