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2 types de bases données:-Bases de données non relationnel= ________ de données: -ensemble des fichiers de tableau _____ __________ entre eux: on parle de fichiers «plat » -organisation, hiérarchique de donner plutôt hétérogène, mets la plus de exhaustive possible -non interrogeable par SQL-Base de donnée, relationnel= _______ de donner: -ensemble de fichiers tous mis en _________ entre eux contenant des données. -interrogeable par SQL
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