MongoDBの様なNoSQLに勢いがあるのは何故ですか？SQLと比べてどんな利点や欠点がありますか？ - Quora
回答 (3件中の1件目) ハイプサイクルという概念をGartnerグループが提唱してまして、様々な流行りスタリのサイクルを分析する標準的な方法となっています。 ハイプとは過度な期待や熱狂を意味する言葉です。一発屋芸人の人気のカーブみたいなもので、テツandトモみたいに安定する場合と、消えていくものがあります。芸人ではありませんがDA PUMPは一茶の人間性もありまして、次は厳しいけど定着すると思っています。 なんだかのトリガーで評価が上がり始め、ピークを迎える。その後評価が下がっていき、底を打つと少し上がって定着するという経過をたどるとしています。これと同じモデルで、流行りのハイテク...
home - HPL/SQL - Procedural SQL on Hadoop, NoSQL and RDBMS
**HPL/SQL is included to Apache Hive since version 2.0** * [[home|Home]]\\ * [[why|Why HPL/SQL]]\\ * [[features|Key Features]]\\ * [[start|Get Started]]\\ * [[doc|HPL/SQL Reference]]\\ * [[download|Download]]\\ * [[new|What's New]]\\ * [[about|About]] ====== Procedural SQL on Hadoop, NoSQL and RDBMS ====== HPL/SQL is an open source tool (Apache License 2.0) that implements procedural SQL language
DynamoDBを使ったKPI保存システム | GREE Engineering
こんにちは！データエンジニアリングチームの長谷川と田畠です。 グリーのデータ分析基盤を良くする仕事をしています。 これはGREE Advent Calendar 2015の6日目の記事です。昨日のRobinさんの記事はVR開発に取り組んだことがあるからこそ書ける記事で、みなさんにとっても新鮮だったのではないでしょうか？ 今日はゲームから少し離れて、KPIダッシュボードのバックエンドをオンプレミスからAWSに移行した話をしたいと思います。最後までお付き合いよろしくお願いします。 はじめに KPI分析を定常的に行うことは、プロダクトの改善のために非常に重要であり、グリーにおいても多くのプロダクトがKPIを閲覧/分析するためのシステムを利用しています。 社内の分析環境では、KPIのデータは時系列データベースに保存されており、内製のグラフ描画ツールにアクセスすることでグラフとして閲覧することができ
Andy Pavlo - Carnegie Mellon University
I am an Associate Professor with Indefinite Tenure of Databaseology in the Computer Science Department at Carnegie Mellon University. My research interest is in database management systems, specifically main memory systems, self-driving / autonomous architectures, transaction processing systems, and large-scale data analytics. At CMU, I am a member of the Database Group and the Parallel Data Labor
GitHub - lordofthejars/nosql-unit: NoSQL Unit is a JUnit extension that helps you write NoSQL unit tests.
Unit testing is a method by which the smallest testable part of an application is validated. Unit tests must follow the FIRST Rules; these are Fast, Isolated, Repeatable, Self-Validated and Timely. It is strange to think about a JEE application without persistence layer (typical Relational databases or new NoSQL databases) so should be interesting to write unit tests of persistence layer too. When
The Future of the Database (Infographic) - Innovation Insights
During the first database wars in the early 1980s, it wasn't immediately obvious that the relational database model was superior to existing models. But over time, this model won due the power of SQL programming and ability to simply structure critical business data for back-office automation, e-business, and web-sites. As data growth and transaction loads increased, bigger and more powerful serve
Is It Time For NoSQL 2.0? - Slashdot
Posted by Unknown Lamer on Wednesday February 22, 2012 @02:22PM from the hyperhack-the-hypergibsoncube dept. New submitter rescrv writes "Key-value stores (like Cassandra, Redis and DynamoDB) have been replacing traditional databases in many demanding web applications (e.g. Twitter, Google, Facebook, LinkedIn, and others). But for the most part, the differences between existing NoSQL systems come
NoSQL Data Modeling Techniques
NoSQL databases are often compared by various non-functional criteria, such as scalability, performance, and consistency. This aspect of NoSQL is well-studied both in practice and theory because specific non-functional properties are often the main justification for NoSQL usage and fundamental results on distributed systems like the CAP theorem apply well to NoSQL systems. At the same time, NoSQL
Using MySQL as a NoSQL - A story for exceeding 750,000 qps on a commodity server
UPDATE: Oracle officially released memcached daemon plugin that talks with InnoDB. I'm glad to see that NoSQL+MySQL has become an official solution. It's still preview release but will be very promising. Let's try it to make it better! Most of high scale web applications use MySQL + memcached. Many of them use also NoSQL like TokyoCabinet/Tyrant. In some cases people have dropped MySQL and have sh
Paper: No Relation: The Mixed Blessings of Non-Relational Databases - High Scalability -
This excellent survey of the field was written by Ian Thomas Varley as part of his Master of Science in Engineering program. The aim of this paper is to explore the conceptual design space of non-relational databases as compared to traditional relational databases. It is clear that the design needs of the two paradigms are different, but how fundamental are the differences, and what strategies can
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Firestore: The NoSQL Serverless Database for the Application Developer – Google Research
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GitHub - precog/platform: Advanced Analytics Engine for NoSQL Data
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