翻訳と辞書 Words near each other ・ remote write protocol ・ removable disk ・ removable hard disk ・ rendering ・ renderman shading language ・ rendezvous ・ rep ・ repeat ・ repeat loop ・ repeater ・ repeating group ・ repetitive strain disorder ・ repetitive strain injury ・ repl ・ replacement algorithm ・ replay ・ replication ・ replicator ・ reply ・ repondez s'il vous plait 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 repeating group ： FOLDOC repeating group Any attribute that can have multiple values associated with a single instance of some {entity}. For example, a book might have multiple authors. Such a "-to-many" relationship might be represented in an unnormalised relational database as multiple author columns in the book table or a single author(s) column containing a string which was a list of authors. Converting this to "first normal form" is the first step in database normalisation. Each author of the book would appear in a separate row along with the book's primary key. Later nomalisation stages would move the book-author relationship into a separate table to avoid repeating other book attibutes (e.g. title, publisher) for each author. (2005-07-28) 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.