多様なデータモデルを一元管理できるDBMSが「マルチモデルデータベース」だ。なぜ登場したのか。従来のDBMSとは何が違う ...

A data dictionary is divided logically into areas. The information is organized into entity types, which correspond to the main data processing components, such as elements, records, files, programs, ...

The way to structure data for a database, along with the tools provided to allow database administrators to build the logical database layer, is part of the conceptual DBMS schema layer. The ...