{"id":9771,"date":"2022-08-12T06:29:00","date_gmt":"2022-08-12T04:29:00","guid":{"rendered":"https:\/\/expert-only.com\/?p=9771"},"modified":"2023-01-02T15:45:02","modified_gmt":"2023-01-02T14:45:02","slug":"sgbd-systeme-gestion-de-base-de-donnees","status":"publish","type":"post","link":"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/","title":{"rendered":"SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es"},"content":{"rendered":"\n<h4 class=\"has-text-align-center wp-block-heading\"><strong><em>D\u00e9finition d&rsquo;un SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es et ses diff\u00e9rents types.<\/em><\/strong><\/h4>\n\n\n\n<p>Un SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es est un ensemble de mat\u00e9riels et de logiciels d\u00e9di\u00e9s au fonctionnement de bases de donn\u00e9es. C&rsquo;est donc un ensemble de moyens qui permet \u00e0 un ou plusieurs ordinateurs ou serveurs de stocker, d&rsquo;organiser et de r\u00e9cup\u00e9rer des donn\u00e9es.<\/p>\n\n\n\n<p>Premi\u00e8rement, un SGBD effectue du stockage de donn\u00e9es mais g\u00e8re \u00e9galement leur traitement, leur s\u00e9curit\u00e9 et leur int\u00e9grit\u00e9. Le SGBD stocke les informations dans des tables o\u00f9 chaque ligne repr\u00e9sente un \u00e9l\u00e9ment ou un objet. Et chaque colonne repr\u00e9sente un attribut ou une caract\u00e9ristique.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/#1-sgbd-vs-systeme-erp\" >1. SGBD VS Syst\u00e8me ERP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/#2-fonctionnement-dun-systeme-de-gestion-de-base-de-donnees\" >2. Fonctionnement d&rsquo;un Syst\u00e8me de Gestion de Base de Donn\u00e9es<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/#3-differences-entre-un-sgbd-local-et-cloud\" >3. Diff\u00e9rences entre un SGBD local et cloud<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/#4-les-differents-types-de-systeme-de-gestion-de-base-de-donnees\" >4. les diff\u00e9rents types de Syst\u00e8me de Gestion de Base de Donn\u00e9es<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/#5-les-criteres-de-selection-dun-sgbd\" >5. Les crit\u00e8res de s\u00e9lection d&rsquo;un SGBD<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-1-sgbd-vs-systeme-erp\"><span class=\"ez-toc-section\" id=\"1-sgbd-vs-systeme-erp\"><\/span>1. SGBD VS Syst\u00e8me ERP<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Deuxi\u00e8mement, un syst\u00e8me de gestion de base de donn\u00e9es (SGBD) est un syst\u00e8me logiciel qui g\u00e8re le stockage et la r\u00e9cup\u00e9ration des donn\u00e9es. Il est charg\u00e9 de s&rsquo;assurer que les donn\u00e9es sont fiables et accessibles \u00e0 tout moment. <\/p>\n\n\n\n<p>Un syst\u00e8me ERP est un progiciel qui g\u00e8re tous les processus m\u00e9tier d&rsquo;une organisation, y compris la planification des produits, l&rsquo;approvisionnement, la fabrication, les ventes et le service client. Le syst\u00e8me ERP fournit donc des informations sur les performances de l&rsquo;entreprise \u00e0 la direction et leur permet de prendre de meilleures d\u00e9cisions. <\/p>\n\n\n\n<p>Un syst\u00e8me ERP est un progiciel pour g\u00e9rer tous les processus d&rsquo;une organisation, y compris la planification des produits, l&rsquo;approvisionnement, la fabrication et les ventes. C&rsquo;est l&rsquo;Informatique D\u00e9cisionnelle h\u00e9berg\u00e9e dans un <a href=\"https:\/\/expert-only.com\/concepts\/siad-systeme-information-aide-decision\/\">SIAD<\/a> pour syst\u00e8me d&rsquo;information et d&rsquo;aide \u00e0 la d\u00e9cision appel\u00e9e aussi Business Intelligence en Anglais.<\/p>\n\n\n\n<p>Les ERP utilisent aussi les \u00e9change de donn\u00e9es informatis\u00e9 ou EDI. Dans les transactions de commerce \u00e9lectronique, le client envoie un message au fournisseur contenant les sp\u00e9cifications du produit et les informations sur les prix. Et cela de mani\u00e8re compl\u00e8tement automatis\u00e9e et transparente.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-tutoriels-sql-et-it wp-block-embed-tutoriels-sql-et-it\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/expert-only.com\/concepts\/bases-de-donnees-transactionnelles-oltp\/\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-2-fonctionnement-d-un-systeme-de-gestion-de-base-de-donnees\"><span class=\"ez-toc-section\" id=\"2-fonctionnement-dun-systeme-de-gestion-de-base-de-donnees\"><\/span>2. Fonctionnement d&rsquo;un Syst\u00e8me de Gestion de Base de Donn\u00e9es<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Une base de donn\u00e9es est une collection d&rsquo;informations stock\u00e9es dans un syst\u00e8me informatique. Ce sont des tables avec des lignes et des colonnes qui composent les bases de donn\u00e9es. Le SGBD stocke et organise les donn\u00e9es physiquement et logiquement, comme vous le verriez sur une feuille de calcul ou un tableau Excel.<\/p>\n\n\n\n<p>L&rsquo;architecture technique d&rsquo;une base de donn\u00e9es fait r\u00e9f\u00e9rence \u00e0 la disposition physique du stockage des donn\u00e9es, qui comprend l&#8217;emplacement des donn\u00e9es sur le disque dur ou un autre p\u00e9riph\u00e9rique de stockage. <\/p>\n\n\n\n<p>D&rsquo;un autre c\u00f4t\u00e9, une architecture cloud fait r\u00e9f\u00e9rence \u00e0 la mani\u00e8re dont les donn\u00e9es sont accessibles sur un r\u00e9seau. Les donn\u00e9es sont stock\u00e9es sur plusieurs serveurs, accessibles via Internet ou via un r\u00e9seau priv\u00e9 (VPN). C&rsquo;est le domaine appel\u00e9 <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Cloud_computing\" target=\"_blank\" rel=\"noreferrer noopener\">Cloud computing<\/a> ou informatique sur le nuage en Fran\u00e7ais.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-3-differences-entre-un-sgbd-local-et-cloud\"><span class=\"ez-toc-section\" id=\"3-differences-entre-un-sgbd-local-et-cloud\"><\/span>3. Diff\u00e9rences entre un SGBD local et cloud<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Une base de donn\u00e9es ou SGBD locale est donc install\u00e9e sur un ou plusieurs serveurs, g\u00e9n\u00e9ralement sur le m\u00eame r\u00e9seau que les ordinateurs clients. Elle se trouve sur le r\u00e9seau local de l&rsquo;entreprise qui l&rsquo;exploite. C&rsquo;est une base de donn\u00e9es On-Premise.<\/p>\n\n\n\n<p>Une base de donn\u00e9es cloud, utilis\u00e9e notamment par <a href=\"https:\/\/expert-only.com\/concepts\/software-as-a-service-saas\/\">les solutions SaaS<\/a>, est stock\u00e9e sur un ou plusieurs serveurs connect\u00e9s \u00e0 Internet. Elle peut \u00eatre consult\u00e9e par plusieurs utilisateurs clients \u00e0 tout moment depuis n&rsquo;importe o\u00f9 dans le monde. L&rsquo;architecture cloud est devenue de plus en plus populaire car elle permet un stockage plus facile des donn\u00e9es, moins de maintenance et une meilleure s\u00e9curit\u00e9.<\/p>\n\n\n\n<p>Voici donc les avantages de l&rsquo;utilisation d&rsquo;une base de donn\u00e9es bas\u00e9e sur le cloud:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Acc\u00e8s plus facile aux donn\u00e9es<\/strong> de n&rsquo;importe o\u00f9 dans le monde<\/li>\n\n\n\n<li><strong>Am\u00e9lioration de la s\u00e9curit\u00e9<\/strong> et de la confidentialit\u00e9 des donn\u00e9es<\/li>\n\n\n\n<li><strong>Rentabilit\u00e9 pour les petites entreprises<\/strong> avec des ressources informatiques limit\u00e9es<\/li>\n\n\n\n<li><strong>\u00c9volutivit\u00e9 am\u00e9lior\u00e9e pour les grandes entreprises<\/strong> avec de gros volumes de donn\u00e9es<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-4-les-differents-types-de-systeme-de-gestion-de-base-de-donnees\"><span class=\"ez-toc-section\" id=\"4-les-differents-types-de-systeme-de-gestion-de-base-de-donnees\"><\/span>4. les diff\u00e9rents types de Syst\u00e8me de Gestion de Base de Donn\u00e9es<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Il existe de nombreux types de syst\u00e8mes de gestion de bases de donn\u00e9es, et elles ont leurs avantages et inconv\u00e9nients. Les bases de donn\u00e9es relationnelles stockent les donn\u00e9es dans des tables avec des colonnes et des lignes.  Tandis que <a href=\"https:\/\/expert-only.com\/ssas\/differences-cubes-rolap-holap-molap\/\">les bases de donn\u00e9es OLAP<\/a> utilisent des cubes multidimensionnels pour stocker et analyser les donn\u00e9es.<\/p>\n\n\n\n<p>Toutefois, les bases de donn\u00e9es relationnelles appel\u00e9es bases <a href=\"https:\/\/expert-only.com\/concepts\/bases-de-donnees-transactionnelles-oltp\/\">Online Transactional Processing ou OLTP<\/a> n\u00e9cessitent plus de temps pour ex\u00e9cuter des requ\u00eates. Mais elles sont plus flexibles que les bases de donn\u00e9es OLAP en termes de modifications de sch\u00e9ma. <\/p>\n\n\n\n<p>Le langage SQL permet d&rsquo;interroger les bases de donn\u00e9es relationnelles. Tandis que les requ\u00eates OLAP n\u00e9cessitent un langage sp\u00e9cifique appel\u00e9 <a href=\"https:\/\/expert-only.com\/concepts\/definition-mdx-multidimensional-expressions\/\">Multidimensional Expressions ou MDX<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-tutoriels-sql-et-it wp-block-embed-tutoriels-sql-et-it\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"ETeCsCVrVY\"><a href=\"https:\/\/expert-only.com\/fr\/concepts\/mdx-multidimensional-expressions\/\">MDX ou Multidimensional Expressions<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"\u00ab\u00a0MDX ou Multidimensional Expressions\u00a0\u00bb &#8212; Tutoriels SQL et IT\" src=\"https:\/\/expert-only.com\/fr\/concepts\/mdx-multidimensional-expressions\/embed\/#?secret=NPDORQoREm#?secret=ETeCsCVrVY\" data-secret=\"ETeCsCVrVY\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-5-les-criteres-de-selection-d-un-sgbd\"><span class=\"ez-toc-section\" id=\"5-les-criteres-de-selection-dun-sgbd\"><\/span>5. Les crit\u00e8res de s\u00e9lection d&rsquo;un SGBD<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Pour conclure, il existe des crit\u00e8res importants \u00e0 \u00e9valuer pour s\u00e9lectionner un syst\u00e8me de gestion de base de donn\u00e9es (SGBD).<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Le premier crit\u00e8re est le secteur d&rsquo;activit\u00e9 et les besoins commerciaux de l&rsquo;entreprise.<\/li>\n\n\n\n<li>Le deuxi\u00e8me crit\u00e8re est le budget financier de l&rsquo;entreprise.<\/li>\n\n\n\n<li>Le troisi\u00e8me crit\u00e8re est la comp\u00e9tence et l&rsquo;exp\u00e9rience du personnel informatique de l&rsquo;entreprise.<\/li>\n\n\n\n<li>Et un dernier crit\u00e8re non n\u00e9gligeable et souvent impos\u00e9, la compatibilit\u00e9 des logiciels qui n\u00e9cessitent les bases de donn\u00e9es. C&rsquo;est \u00e0 dire l&rsquo;environnement technique existant (Microsoft versus Linux, bases de donn\u00e9es SAP versus Oracle, etc.).<\/li>\n<\/ol>\n\n\n\n<p>Voici une d\u00e9finition des SGBD, \u00e9l\u00e9ments clefs dans le panorama actuel des technologies de l&rsquo;information, en passant par les bases de type Big Data, Microsoft, MySQL ou Oracle.<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>D\u00e9finition d&rsquo;un SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es et ses diff\u00e9rents types. Un SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es est un ensemble de mat\u00e9riels et de logiciels d\u00e9di\u00e9s au fonctionnement de bases de <a class=\"mh-excerpt-more\" href=\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/\" title=\"SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es\">&#8230;<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":10862,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":{"0":"post-9771","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-concepts"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v26.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es - Concepts IT<\/title>\n<meta name=\"description\" content=\"Un SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es est un ensemble mat\u00e9riel et logiciel pour stocker, organiser et g\u00e9rer des donn\u00e9es.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es\" \/>\n<meta property=\"og:description\" content=\"Un SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es est un ensemble mat\u00e9riel et logiciel pour stocker, organiser et g\u00e9rer des donn\u00e9es.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/\" \/>\n<meta property=\"og:site_name\" content=\"Tutoriels SQL et IT\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ExpertOnlyCom\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-08-12T04:29:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-01-02T14:45:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/expert-only.com\/wp-content\/uploads\/2022\/09\/texture-design-7E25D084595_1920x1080.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Expert-Only\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@expert_only\" \/>\n<meta name=\"twitter:site\" content=\"@expert_only\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Expert-Only\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/\"},\"author\":{\"name\":\"Expert-Only\",\"@id\":\"https:\/\/expert-only.com\/fr\/#\/schema\/person\/406a9576b52944f018739a42046873ef\"},\"headline\":\"SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es\",\"datePublished\":\"2022-08-12T04:29:00+00:00\",\"dateModified\":\"2023-01-02T14:45:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/\"},\"wordCount\":1040,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/expert-only.com\/fr\/#organization\"},\"image\":{\"@id\":\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/expert-only.com\/wp-content\/uploads\/2022\/09\/texture-design-7E25D084595_1920x1080.jpg\",\"articleSection\":[\"Concepts IT\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/\",\"url\":\"https:\/\/expert-only.com\/fr\/concepts\/sgbd-systeme-gestion-de-base-de-donnees\/\",\"name\":\"SGBD ou Syst\u00e8me de Gestion de Base de Donn\u00e9es - 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