翻訳と辞書 Words near each other ・ Universal Publishers (Australia) ・ Universal Publishers (United States) ・ Universal Pulse ・ Universal quadratic form ・ Universal quantification ・ Universal queue ・ Universal Radio ・ Universal Radio (song) ・ Universal Reality Combat Championship ・ Universal reason ・ Universal receiver ・ Universal reconciliation ・ Universal Records (defunct record label) ・ Universal Records (disambiguation) ・ Universal Records (Philippines) ・ Universal relation assumption ・ Universal Religion Chapter 1 ・ Universal Religion Chapter 2 ・ Universal Religion Chapter 3 ・ Universal Religion Chapter 4 ・ Universal Religion Chapter 5 ・ Universal Religion Chapter 6 ・ Universal Religion Chapter 7 ・ Universal remote ・ Universal Remote Console ・ Universal remote control duplicator ・ Universal representation (C*-algebra) ・ Universal Republic Records ・ Universal Research Group ・ Universal resurrection Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Universal relation assumption ： ウィキペディア英語版 Universal relation assumption The universal relation assumption in relational databases states, that one can place all data attributes into a (possibly very wide) table, which may then be decomposed into smaller tables as needed.〔I. T. Hawryszkiewycz, ''Database analysis and design,'' 1984. ISBN 0-574-21485-2, pages 59-62.〕 However, the assumption that a single large table can capture real database designs is often plagued with a number of difficulties.〔Carlo Zaniolo, ''Advances in database technology--EDBT 2000,'' 2000. ISBN 3-540-67227-3, page 276〕 The "nested universal relation" model has attempted to address some of the problems and offer improvements.〔Mark Levene, ''The nested universal relation database model,'' 2000. ISBN 3-540-55493-9, pages 1-5.〕 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Universal relation assumption」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.