May 2019
Beginner to intermediate
296 pages
6h 58m
Japanese
Content preview from IT用語図鑑 ビジネスで使える厳選キーワード256
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
249
関連用語
用語に関連する話
用語の使用例
6
I
T
テ ーブルとイン デックス
「テーブルにインデックスを付けないと検索が 遅くなるよ。」
カラムとレコード
テーブルの縦方向をカラムと言い、
どのような属性を入れるかを決
める。一方、横方向をレコードと
言い、登録されている1件分のデー
タを指す。
セ ル に 相 当 す るフィー ルド
レコードの1つ1つの要素をフィー
ルドと言い、表計算ソフトでのセ
ルに相当する。入力フォームで
データを入力する場所を指すこ
ともある。
イン デック ス の デ メリット
インデックスにより高速に検索
できるが、更新時はインデックス
も更新する必要があるため、頻繁
に更新されるテーブルでは処理
速度が低下する可能性がある。
データを 表 形 式 で 管 理
リレーショナルデータベースにおいて、表計算ソフトのシートのようにデータを格納する表形
式 の 場 所をテーブ ルと言う。データベースには複 数 のテーブ ル が 格 納され ており、ひも付
け て処 理を 行う。また 、テーブ ル から特 定 の データを 検 索 するとき、デ ータ量 が 多くなると
処理に時間がかかるため、索引を作成する。これをインデックスと言う。
そうそう
このページ !
A
AI
Active
API
203
229
098
Keyword
224
▶
てーぶる
▶
い ん で っくす
リレーショナ ル デ ータベースと S Q L
……P248
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.