短語(yǔ)詞組短語(yǔ)relational data model formalities 上一節(jié)nested relational DB model 嵌套關(guān)系數(shù)據(jù)庫(kù)模型rough relational database model 關(guān)系數(shù)據(jù)庫(kù)模型relational financing model 關(guān)系型融資模式relational grade model 關(guān)聯(lián)度模型fuzzy relational data model 模糊關(guān)系數(shù)據(jù)模型relational data model 模型;關(guān)聯(lián)式資料模式;關(guān)系型數(shù)據(jù)庫(kù)Relational l model 以表的形式表示數(shù)據(jù)的數(shù)據(jù)模型extended relational data model 擴(kuò)充關(guān)系數(shù)據(jù)模型 返回 relational model