no sql - ignite casablanca #1
DESCRIPTION
Présentation de Amine Chouki au Ignite Casablanca - Mars 2010TRANSCRIPT
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IGNITE CASABLANCA
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IGNITE CASABLANCA
Aujourd’hui
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C’est compliqué
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IGNITE CASABLANCA
Non distribuée
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Non Evolutive
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Propriétés des bases de données relationnelles:
1. Atomicité 2. Consistence 3. Isolation 4. Durabilité
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Trop “ACID”
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Le NoSQL introduit l’acronyme BASE:
1. Basically Available « essentiellement disponible » 2. Soft state « état variable dans le temps » 3. Eventually consistant « éventuellement consistant »
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Théorème du CAP
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Théorème du CAP
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IGNITE CASABLANCA
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Orientée Document
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Orientée Clé/Valeur
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Orientée Colonnes
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Orientée Graph
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C’est connu?
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Le NoSQL et l’open source
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Le NoSQL est un luxe:
1. Google : BigTable 2. Amazone : SimpleDB
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Limitations
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Les bons outils pour le bon job