In a hierarchical database hdbms , you begin with a strictly defined tree of data nodes 在層次數(shù)據(jù)庫(kù)( hdbms )中,首先是從嚴(yán)格定義的數(shù)據(jù)節(jié)點(diǎn)樹(shù)開(kāi)始的。
But in dtds oriented more to data records , an xml document could be as rigid as a hierarchical database 但dtd更多地是面向數(shù)據(jù)記錄, xml文檔和層次數(shù)據(jù)庫(kù)可以一樣嚴(yán)格。
This goal is accomplished almost automatically in hierarchical databases , but takes work in relational ones 這個(gè)目標(biāo)在層次數(shù)據(jù)庫(kù)中幾乎是自動(dòng)完成的,但在關(guān)系數(shù)據(jù)庫(kù)中需要做些工作。
In hierarchical databases , data access is utterly predictable in structure ; therefore both retrieval and updates can be highly optimized by a dbms 在層次數(shù)據(jù)庫(kù)中,數(shù)據(jù)訪問(wèn)在結(jié)構(gòu)上是完全可預(yù)測(cè)的;因此dbms可以高度優(yōu)化檢索和更新。
The ibm information management system is ibms premier transaction and hierarchical database management system , the product of choice for critical online operational applications and data where support for high availability , performance , capacity , integrity , and low cost are key factors Ims是ibm最早的事務(wù)和層次數(shù)據(jù)庫(kù)管理系統(tǒng),它非常適合支持高可用性、高性能、高容量、高完整性和低成本的關(guān)鍵性聯(lián)機(jī)操作應(yīng)用程序和數(shù)據(jù)。
hierarchical databaseとは意味:《コ》階層型{かいそう がた}データベース hierarchical database meaning:[Computer] < database > A kind of database management system that links records together like a family tree such that each record type has only one owner, e.g. an order is owned by only one ...hierarchical database перевод:иерархическая база данных, база данных с иерархической структурой