數(shù)據(jù)庫抽象化 抽象數(shù)據(jù)庫databasecatalog: 數(shù)據(jù)庫目錄database-logical organization: 數(shù)據(jù)庫邏輯組織databaseconsistency-tance: 數(shù)據(jù)庫一致性database, memory-resident (mrd): 存儲器駐留數(shù)據(jù)庫databasedatamodel: 數(shù)據(jù)庫數(shù)據(jù)模型下載手機(jī)詞典可隨時隨地查詞查翻譯
