常見例句雙語例句Mapping a data representation from an object model to a relational data model with a SQL-based schema.用來把對象模型表示的對象映射到 基于SQL的關系模型數(shù)據(jù)結構中去。NHMDB is a multimedia database system based on the extended relational data model and has the characteristics of object-oriented databases.NHMDB是基于擴充關系數(shù)據(jù)模型的多媒介數(shù)據(jù)庫系統(tǒng)，它以擴充關系為基礎支持面向對象的主要特性。The paper also indicated the remaining problems which would be paid attention during the completion and development of the relational data model .同時還提示了在完成和發(fā)展該關系數(shù)據(jù)模型中所需注意的問題。 返回 relational data model