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Scooped by
Mickael Ruau
January 16, 2014 4:27 AM
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John Graham-Cumming wrote an article today complaining about how a computer system he was working with described his last name as having invalid characters. It of course does not, because anything someone tells you is their name is — by definition — an appropriate identifier for them. John was understandably vexed about this situation, and he has every right to be, because names are central to our identities, virtually by definition.
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Rescooped by
Mickael Ruau
from BIG DATA
January 15, 2014 5:44 AM
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Des données au savoir : big data et data mining La numérisation croissante de nos activités, la capacité sans cesse accrue à stocker des données numériqu
Via Laurent, matinalesISTIAinnovation
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Scooped by
Mickael Ruau
January 13, 2014 6:28 AM
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Qu’est-ce qui a le plus de valeur : un ordinateur haut de gamme ou la photo, même floue, de votre dernière soirée ? Un portable ou bien les messages échangés avec vos proches ? Une superbe tablette dernier cri ou les vidéos d’une...
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Scooped by
Mickael Ruau
January 11, 2014 5:47 AM
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A MySQL event is a task that runs based on a predefined schedule therefore sometimes it is referred to as a scheduled event. MySQL event is also known as "temporal trigger" because it is triggered by time, not by table update like trigger.
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Scooped by
Mickael Ruau
January 9, 2014 5:00 AM
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MongoDB est sacré SGDB de l'année 2013 le SGDB NoSQL sort premier d'un classement ultra sélectif Solid IT la firme à l'origine du classement des SGDB (Systèmes de Gestions de Base de Données) en fonction de leurs popularité récidive, et propose le...
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Scooped by
Mickael Ruau
January 9, 2014 4:52 AM
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Sometimes there is a need for keeping large amounts of old, rarely used data without investing too much on expensive storage. Very often such data doesn’t need to be updated anymore, or the intent is to leave it untouched.
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Scooped by
Mickael Ruau
January 5, 2014 9:12 AM
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With MySQL endless configuration options, you can always find a great options to better tune your system.
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Scooped by
Mickael Ruau
January 4, 2014 9:56 AM
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Revisit the long forgotten topic of Stored Procedures in MySQL and PHP
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Scooped by
Mickael Ruau
January 2, 2014 7:31 AM
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We have always received quite few questions here at Percona Support on how to avoid the dreaded “Too many connections” error, as well as what is the recommended value for max_connections.
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Scooped by
Mickael Ruau
December 31, 2013 5:35 AM
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Fortunately, we have SQL standards. Or do we? It’s a well-known secret (or cynical joke) that the SQL standard is yet another SQL dialect among peers.
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Scooped by
Mickael Ruau
December 31, 2013 5:31 AM
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This article is inspired by Craig's recent post "How to Use Unique Indexes in MySQL and Other Databases".
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Scooped by
Mickael Ruau
December 17, 2013 10:12 AM
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Red Hat Enterprise Linux 7 Beta abandonne aussi MySQL pour MariaDB et prend en charge le XFS comme système de fichiers par défaut C'est en ce dernier mois de l'année 2013 que Red Hat, la firme derrière la célèbre distribution Linux professionnelle,...
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Scooped by
Mickael Ruau
December 17, 2013 4:47 AM
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Bonjour à tous ! Ce nouvel article ne va pas proposer de tests techniques ou de développements d'outils de veille ou de SEO, mais juste refléter quelques pensées que j'ai par rapport au Big Data.
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Scooped by
Mickael Ruau
January 15, 2014 10:47 AM
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Understanding why MySQL chooses a particular join order or why table scan is chosen instead of range scan is often very hard even for experienced MySQL users. Two almost identical queries, differing only in constant values, may produce completely different plans. That's why we're introducing a great new feature in 5.6: Optimizer Tracing. The target users of this feature are developers and MySQL users experienced enough to understand the ins and outs of EXPLAIN.
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Rescooped by
Mickael Ruau
from BIG DATA
January 15, 2014 5:43 AM
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L’augmentation du nombre de données numériques (90 % de l’ensemble des données aujourd’hui disponibles ont été créées ces deux dernières années) est le résultat de l’évolution des technologies et des infrastructures qui y sont liées. Pour définir des données dites big data, 5 critères sont retenus (volume, vitesse, variété, véracité, valeur) et différents outils ont été mis en place afin d’exploiter ces informations.
Via Laurent, matinalesISTIAinnovation
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Scooped by
Mickael Ruau
January 11, 2014 5:47 AM
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This tutorial shows you how modify existing MySQL events by using the ALTER EVENT statement. After the tutorial, you will know how to modify schedule of an event, how to enable or disable an event, and how to rename an event.
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Scooped by
Mickael Ruau
January 9, 2014 7:22 AM
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So you’re thinking about running a Data Expedition. The guide below gives you some key pointers about how to make your expedition a success.
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Scooped by
Mickael Ruau
January 9, 2014 4:58 AM
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Vous avez mis en place deux beaux serveurs MySQL avec un système de réplication master-slave qui vous offre des temps de réponse impressionnants et vous permet de dormir sur vos deux oreilles depuis quelques semaines.
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Scooped by
Mickael Ruau
January 9, 2014 4:52 AM
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In the last 10 years I have worked a lot with replication systems, and I have developed a keen interest in the topic of multiple masters in a single cluster.
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Scooped by
Mickael Ruau
January 5, 2014 6:52 AM
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There's more than enough reason to ditch MySQL and switch over to MariaDB and stay there.
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Scooped by
Mickael Ruau
January 2, 2014 7:34 AM
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In many social networking sites, they allow users to login with their Username or their Email Id. I would say this is the fantastic feature for whose all who forgot their usernames.
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Scooped by
Mickael Ruau
January 2, 2014 7:26 AM
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We Got Served How To: Install PHP MySQL, Wikis, WordPress and Forums on Windows Server ... We Got Served Once you have your Windows Server 2012 Essentials computer set-up and running, you'll want to see just what else it can do.
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Scooped by
Mickael Ruau
December 31, 2013 5:34 AM
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L'application Web de gestion des bases de données MySQL phpMyAdmin passe à la version 4.1.2. Plusieurs modifications y ont été apportées et l'interface utilisateur a été largement concernée.
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Scooped by
Mickael Ruau
December 21, 2013 10:15 AM
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Voici quelques options utiles qui permettent d'empêcher l'écriture dans des bases de données MySQL, tout en gardant le droit de lecture.
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Scooped by
Mickael Ruau
December 17, 2013 4:50 AM
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Le Big Data se définirait par la règle des 4V : Volume, Variété, Véracité et Vélocité (Vitesse)
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I have never seen a computer system which handles names properly and doubt one exists, anywhere.
So, as a public service, I’m going to list assumptions your systems probably make about names. All of these assumptions are wrong. Try to make less of them next time you write a system which touches names.