August 2015
Intermediate to advanced
312 pages
7h 28m
Japanese
Content preview from 初めてのSpark
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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.
183
9.4 JDBC/ODBC サーバー
JDBC サーバーを起動すると、このサーバーはバックグラウンドで動作し、全ての出力をログファ
イルに送ります。JDBC サーバーに対してクエリを実行したときに問題があれば、ログを見て、さ
らに完全なエラーメッセージを調べることができます。
Spark SQL
には、
ODBC
ドライバ経由で多くの外部ツールを接続することもできます。
Spark
SQL ODBC
ドライバは
Simba
（
http://www.simba.com
）によって開発されており、数多くの
Spark
のベンダー（例えば
Databricks Cloud
、
Datastax
、
MapR
など）からダウンロードできま
す。一般に、このドライバは
Microstrategy
や
Tableau
といったビジネスインテリジェンス（
BI
）
ツール群で使われます。自分が使っているツールの
Spark SQL
への接続方法は調べてみてくださ
い。加えて、
Hive
へのコネクタを持つ
BI
ツールの多くのは、それらの
Hive
のコネクタで
Spark
SQL
へも接続できます。これは、
Spark SQL
が同じクエリ言語とサーバーを使っているためです。
9.4.1
Beeline
の
Beeline
クライアントの中では、標準的な
HiveQL
のコマンドを使って、テーブルの作成やリ
ストの取得、あるいはテーブルに対するクエリの実行ができます。
HiveQL
の完全な詳細は
Hive
Language Manual
（
https://cwiki.apache.org/confluence/display/Hive/LanguageManual ...
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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.