http://jpn.teradata.jp/library/nyumon/ins_1905.html

http://stackoverflow.com/questions/2121880/call-instance-method-from-class-method

http://www.bbreak.co.jp/maeyes/column/column7.html dwh http://stackoverflow.com/questions/3419353/what-is-the-difference-between-a-database-and-a-data-warehouse bi http://dba.stackexchange.com/questions/6619/can-you-give-me-one-example-of-…

forward declaration for objective-c interfacesstackoverflow.com c++’s... class definition #import or class declaration @class

http://www.skyarch.net/blog/?p=1670

http://stackoverflow.com/questions/3907732/objective-c-method-signatures-are-they-inconsistent

even files are 'grouped' on xcode the 'grouped directory' is not created on project (any solution? (can sync?)) (below is one) Xcodeのグループとディレクトリ構成を同期させてくれるツール「Synx」 - tobioka.net - You Ain't Gonna Need It offici…

Xcodeのリファクタリング機能を使ってファイル名変更 - Qiitaqiita.com

official The App Life Cycledeveloper.apple.com not official What is the Life Cycle of an iPhone application?stackoverflow.com

http://en.m.wikipedia.org/wiki/Natural_key

http://stackoverflow.com/a/5909310

method missing on the instance http://ye-system-engineer.blogspot.jp/2010/08/iphoneunrecognized-selector-sent-to.html?m=1

http://stackoverflow.com/questions/21900185/what-are-oltp-and-olap-what-is-the-difference-between-them (以前も書いた気が)

Xcode - NSUnknownKeyException this class is not key value coding-compliant for the keyでドハまりした - Qiitaqiita.com MainStoryboard で不要になったオブジェクトプロパティを削除(ソースコード上で) ガワでは消えていても中身が残ってる

1NF requiring existence of "the key" 2NF requiring the non-key attributes be dependent on "the whole key" 3NF requiring the non-key attributes be dependent on "nothing but the key" header tag body hello some hello world... ... ... ... ... …

field in one table that uniquely identifies a row of another table. defined in a second table, but it refers to the first table Foreign key - Wikipedia, the free encyclopedia 外部キーとは 【 FK 】 【 foreign key 】 - 意味/解説/説明/定義 ：…

primary key key for identification of set unique key key for uniqueness assurance of set 整合性制約 - オラクル・Oracleをマスターするための基本と仕組みwww.shift-the-oracle.com

singular side(?) -- T-SQL plural side -- Joe Celko sql - Table Naming Dilemma: Singular vs. Plural Names - Stack Overflow

POA: program -> data DOA: data -> program http://stackoverflow.com/questions/1641580/what-is-data-oriented-design

delete line config.serve_static_assets = true at config/environments/production.rb and config/environments/test.rb from https://github.com/heroku/rails_serve_static_assets/issues/11

To produce descriptive and readable code. Objective-C does not have [keyword parameters, named parameters] keyword parameters https://robots.thoughtbot.com/ruby-2-keyword-arguments named parameters http://docs.scala-lang.org/tutorials/tour…