{"id":70852,"date":"2021-06-16T08:54:09","date_gmt":"2021-06-16T07:54:09","guid":{"rendered":"https:\/\/datascientest.com\/?p=70852"},"modified":"2023-11-09T14:07:05","modified_gmt":"2023-11-09T14:07:05","slug":"acid","status":"publish","type":"post","link":"https:\/\/datascientest.com\/acid","title":{"rendered":"ACID : tout savoir sur ce concept important en gestion de BDD"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"70852\" class=\"elementor elementor-70852\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a2d3bed elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a2d3bed\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-db40280\" data-id=\"db40280\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b19ee27 elementor-widget elementor-widget-heading\" data-id=\"b19ee27\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">L'approche ACID (Atomicit\u00e9, Coh\u00e9rence, Isolation, Durabilit\u00e9) permet d'assurer l'int\u00e9grit\u00e9 des donn\u00e9es au sein d'une base de donn\u00e9es. D\u00e9couvrez tout ce qu'il y a \u00e0 savoir sur ce concept.<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e517438 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e517438\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4749646\" data-id=\"4749646\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2e05fc5 elementor-widget elementor-widget-text-editor\" data-id=\"2e05fc5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>Le Big Data offre de formidables possibilit\u00e9s. Toutefois, <strong>pour traiter les immenses volumes de donn\u00e9es<\/strong> g\u00e9n\u00e9r\u00e9s chaque jour, il est n\u00e9cessaire d&rsquo;utiliser les bases de donn\u00e9es.<\/p><p>Une base de donn\u00e9es est un ensemble de donn\u00e9es, structur\u00e9 ou non, stock\u00e9es sur des ordinateurs. \u00c0 l&rsquo;heure du Big Data, ces bases de donn\u00e9es reposent souvent sur des fermes de serveurs sp\u00e9cialement con\u00e7ues \u00e0 cet effet : <strong>les Data Centers<\/strong>.<\/p><p>Ces architectures sont complexes, et on utilise <strong>des syst\u00e8mes de gestion (DBMS)<\/strong> pour les manipuler. Ces syst\u00e8mes permettent la gestion du stockage, et la r\u00e9cup\u00e9ration de donn\u00e9es au sein des databases.<\/p><p>Alors, comment g\u00e9rer les bases de donn\u00e9es et leur contenu d&rsquo;une mani\u00e8re optimale ? L&rsquo;<strong>une des m\u00e9thodes les plus couramment employ\u00e9es<\/strong> est l&rsquo;approche ACID.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f7b3d3f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f7b3d3f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-414d4d5\" data-id=\"414d4d5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fa37d4c elementor-widget elementor-widget-heading\" data-id=\"fa37d4c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">ACID : qu'est-ce que c'est ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e58ccd9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e58ccd9\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-26e30b4\" data-id=\"26e30b4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-839e7dc elementor-widget elementor-widget-text-editor\" data-id=\"839e7dc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Dans le domaine de l&rsquo;informatique, ACID est un acronyme d\u00e9signant les termes : <strong>Atomicit\u00e9, Coh\u00e9rence, Isolation et Durabilit\u00e9<\/strong>.<\/p><p>Ces quatre principes permettent d&rsquo;assurer que<strong> les transactions de bases de donn\u00e9es<\/strong> soient trait\u00e9es de fa\u00e7on fiable. Pour rappel, le terme de transaction d\u00e9signe n&rsquo;importe quelle op\u00e9ration effectu\u00e9e au sein d&rsquo;une base de donn\u00e9es. Il peut s&rsquo;agir par exemple de la cr\u00e9ation d&rsquo;un nouvel enregistrement ou d&rsquo;une mise \u00e0 jour des donn\u00e9es.<\/p><p>Or, le moindre changement apport\u00e9 \u00e0 une base de donn\u00e9es doit \u00eatre effectu\u00e9 avec une extr\u00eame rigueur. Dans le cas contraire, <strong>les donn\u00e9es risquent d&rsquo;\u00eatre corrompues<\/strong>.<\/p><p>En appliquant les propri\u00e9t\u00e9s ACID \u00e0 chaque modification effectu\u00e9e dans une base de donn\u00e9es, il est <strong>plus facile de maintenir son exactitude et sa fiabilit\u00e9<\/strong>. \u00c0 pr\u00e9sent, voyons plus en d\u00e9tail les quatre composants de l&rsquo;approche ACID.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2207d72 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2207d72\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0a13c5c\" data-id=\"0a13c5c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-421e2a2 elementor-widget elementor-widget-heading\" data-id=\"421e2a2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Atomicit\u00e9<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2587126 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2587126\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6719685\" data-id=\"6719685\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f3ef589 elementor-widget elementor-widget-text-editor\" data-id=\"f3ef589\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>L&rsquo;atomicit\u00e9 d&rsquo;une transaction de base de donn\u00e9es signifie que tout changement effectu\u00e9 doit \u00eatre <strong>accompli jusqu&rsquo;au bout<\/strong>. En cas d&rsquo;interruption, par exemple une perte de connexion au beau milieu de l&rsquo;op\u00e9ration, le changement doit \u00eatre annul\u00e9 et la base de donn\u00e9es doit revenir automatiquement \u00e0 son \u00e9tat ant\u00e9rieur au d\u00e9but de la transaction.<\/p><p>Ce principe permet <strong>d&rsquo;\u00e9viter qu&rsquo;une transaction soit partiellement termin\u00e9e<\/strong>, \u00e0 cause d&rsquo;une panne ou d&rsquo;un plantage. Dans le cas contraire, il est impossible de savoir \u00e0 quel niveau d&rsquo;avanc\u00e9e le processus a \u00e9t\u00e9 interrompu. D&rsquo;importantes complications peuvent s&rsquo;en suivre.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9da2310 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9da2310\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6398479\" data-id=\"6398479\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-88df86b elementor-widget elementor-widget-video\" data-id=\"88df86b\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/T7iWG2qqw4E&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-video .elementor-widget-container{overflow:hidden;transform:translateZ(0)}.elementor-widget-video .elementor-wrapper{aspect-ratio:var(--video-aspect-ratio)}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{height:100%;width:100%;display:flex;border:none;background-color:#000}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-wrapper{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .elementor-open-inline .elementor-custom-embed-image-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background-size:cover;background-position:50%}.elementor-widget-video .elementor-custom-embed-image-overlay{cursor:pointer;text-align:center}.elementor-widget-video .elementor-custom-embed-image-overlay:hover .elementor-custom-embed-play i{opacity:1}.elementor-widget-video .elementor-custom-embed-image-overlay img{display:block;width:100%;aspect-ratio:var(--video-aspect-ratio);-o-object-fit:cover;object-fit:cover;-o-object-position:center center;object-position:center center}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-custom-embed-image-overlay{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-custom-embed-image-overlay img{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .e-hosted-video .elementor-video{-o-object-fit:cover;object-fit:cover}.e-con-inner>.elementor-widget-video,.e-con>.elementor-widget-video{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d024ca5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d024ca5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f415368\" data-id=\"f415368\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-541d348 elementor-widget elementor-widget-heading\" data-id=\"541d348\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Coh\u00e9rence<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-778e9ce elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"778e9ce\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2c2dd3b\" data-id=\"2c2dd3b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-293bb1c elementor-widget elementor-widget-text-editor\" data-id=\"293bb1c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>La coh\u00e9rence, ou consistency en anglais, est un principe permettant de garantir qu&rsquo;une transaction n&rsquo;enfreigne <strong>les contraintes d&rsquo;int\u00e9grit\u00e9<\/strong><strong> des donn\u00e9es<\/strong> fix\u00e9es pour une database.<\/p><p>Ainsi, si la base de donn\u00e9es entre dans <strong>un \u00e9tat \u00a0\u00bb ill\u00e9gal \u00a0\u00bb en enfreignant ces r\u00e8gles<\/strong>, le processus de transaction sera automatiquement abandonn\u00e9. La base de donn\u00e9es retournera automatiquement \u00e0 son \u00e9t\u00e9 ant\u00e9rieur.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c78b9f6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c78b9f6\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-aededf0\" data-id=\"aededf0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-46cd82a elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"46cd82a\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">D\u00e9couvrir l'approche ACID <\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c1569f3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c1569f3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b6eef4b\" data-id=\"b6eef4b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-125044c elementor-widget elementor-widget-heading\" data-id=\"125044c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Isolation<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9de3771 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9de3771\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9323f1a\" data-id=\"9323f1a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7a2ea6a elementor-widget elementor-widget-text-editor\" data-id=\"7a2ea6a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Une <strong>transaction isol\u00e9e est consid\u00e9r\u00e9e comme \u00a0\u00bb s\u00e9rialisable \u00ab\u00a0<\/strong>. Cela signifie que les transactions surviennent dans un ordre successif, plut\u00f4t que d&rsquo;\u00eatre effectu\u00e9es en une fois.<\/p><p>Toute \u00e9criture ou lecture effectu\u00e9e dans la base de donn\u00e9es n&rsquo;impacte pas l&rsquo;\u00e9criture ou la lecture d&rsquo;autres transactions survenant sur la m\u00eame database. Un ordre global est cr\u00e9\u00e9, et chaque transaction s&rsquo;ajoute \u00e0 une file d&rsquo;attente. Ce n&rsquo;est <strong>que lorsqu&rsquo;une transaction est totalement compl\u00e8te<\/strong> que les autres d\u00e9butent.<\/p><p>Cela ne veut pas dire que deux op\u00e9rations ne peuvent survenir simultan\u00e9ment. Plusieurs transactions peuvent \u00eatre effectu\u00e9es en m\u00eame temps, \u00e0 condition <strong>qu&rsquo;elles ne puissent pas s&rsquo;impacter entre elles<\/strong>.<\/p><p>Bien \u00e9videmment, cette m\u00e9thode peut avoir <strong>des cons\u00e9quences sur la vitesse des transactions<\/strong>. De nombreuses op\u00e9rations devront attendre avant de pouvoir commencer.<\/p><p>Toutefois, il s&rsquo;agit d&rsquo;un<strong> sacrifice permettant d&rsquo;assurer la s\u00e9curit\u00e9<\/strong> et l&rsquo;int\u00e9grit\u00e9 des donn\u00e9es. Pour r\u00e9aliser cette isolation, il est possible d&rsquo;opter pour un sch\u00e9ma de transaction \u00a0\u00bb optimiste \u00a0\u00bb ou \u00a0\u00bb pessimiste \u00ab\u00a0.<\/p><p>Dans le cas d&rsquo;un<strong> sch\u00e9ma de transaction optimiste<\/strong>, les autres transactions seront effectu\u00e9es sans lire ou \u00e9crire au m\u00eame emplacement. Si deux transactions se confrontent, elles seront automatiquement abandonn\u00e9es et r\u00e9essay\u00e9es.<\/p><p>Un<strong> sch\u00e9ma de transaction pessimiste<\/strong> laisse moins de libert\u00e9 \u00e0 la base de donn\u00e9es. Les ressources seront limit\u00e9es, partant du principe que les transactions s&rsquo;impacteront entre elles. Ceci r\u00e9duit le nombre d&rsquo;abandons et d&rsquo;essais, mais force plus souvent les transactions \u00e0 patienter dans la file d&rsquo;attente.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7ed8113 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7ed8113\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9f8fe27\" data-id=\"9f8fe27\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c1d3ff2 elementor-widget elementor-widget-heading\" data-id=\"c1d3ff2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Durabilit\u00e9<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-87f6ccd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"87f6ccd\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2c4c845\" data-id=\"2c4c845\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-168db82 elementor-widget elementor-widget-text-editor\" data-id=\"168db82\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>La durabilit\u00e9 est le quatri\u00e8me principe de l&rsquo;approche ACID. Il permet d&rsquo;assurer que <b>tout changement apport\u00e9 \u00e0 la base de donn\u00e9es soit permanent<\/b>, m\u00eame en cas de panne du syst\u00e8me.<\/p><p>Ceci permet d&rsquo;\u00e9viter que les donn\u00e9es soient corrompues ou alt\u00e9r\u00e9es par une panne de service, un crash ou tout autre probl\u00e8me technique. Pour permettre cette durabilit\u00e9, <strong>on utilise des \u00a0\u00bb changelogs \u00ab\u00a0<\/strong> pris pour r\u00e9f\u00e9rences chaque fois que la base de donn\u00e9es est red\u00e9marr\u00e9e.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f4ac6bf elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f4ac6bf\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bd400dc\" data-id=\"bd400dc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e16697d elementor-widget elementor-widget-heading\" data-id=\"e16697d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">ACID : quels sont les avantages ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fa4fd6a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fa4fd6a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d7c40de\" data-id=\"d7c40de\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-abf320b elementor-widget elementor-widget-text-editor\" data-id=\"abf320b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>En se conformant aux quatre principes de l&rsquo;approche ACID, il est possible <strong>d&rsquo;assurer la s\u00e9curit\u00e9 et l&rsquo;int\u00e9grit\u00e9 des donn\u00e9es<\/strong> au sein d&rsquo;une base de donn\u00e9es. De cette mani\u00e8re, elles peuvent apporter toute leur valeur \u00e0 l&rsquo;entreprise.<\/p><p>Dans le cas contraire,<strong> une base de donn\u00e9es contenant des donn\u00e9es corrompues<\/strong> peut entra\u00eener de graves probl\u00e8mes dont la r\u00e9solution sera co\u00fbteuse. C&rsquo;est particuli\u00e8rement le cas pour les nombreuses entreprises \u00a0\u00bb data-driven \u00a0\u00bb exploitant leurs donn\u00e9es au quotidien pour prendre des d\u00e9cisions ou orienter leur strat\u00e9gie.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ee395f8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ee395f8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-031d32f\" data-id=\"031d32f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5b89059 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"5b89059\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Suivre une formation ACID<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a778b88 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a778b88\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1c2fac5\" data-id=\"1c2fac5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3bd77f0 elementor-widget elementor-widget-heading\" data-id=\"3bd77f0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Comment ma\u00eetriser l'approche ACID pour les bases de donn\u00e9es ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8928848 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8928848\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-735fd90\" data-id=\"735fd90\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c00021f elementor-widget elementor-widget-video\" data-id=\"c00021f\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/PZlNVCqsHyc&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ff1d26c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ff1d26c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-93cd5b5\" data-id=\"93cd5b5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fa616ce elementor-widget elementor-widget-text-editor\" data-id=\"fa616ce\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Ma\u00eetriser l&rsquo;approche ACID est indispensable pour exploiter correctement le Big Data. C&rsquo;est <strong>une comp\u00e9tence tr\u00e8s recherch\u00e9e<\/strong> par de nombreuses entreprises de tous les secteurs.<\/p><p>Pour d\u00e9couvrir toutes les subtilit\u00e9s de cette approche, et pour apprendre \u00e0 manipuler les diff\u00e9rents types de bases de donn\u00e9es, vous pouvez opter pour<strong> les formations DataScientest<\/strong>.<\/p><p>Les bases de donn\u00e9es sont au coeur de<strong> nos formations Data Scientist, Data Analyst ou encore Data Engineer<\/strong>. Ces diff\u00e9rents parcours permettent de se former aux m\u00e9tiers de la Data Science.<\/p><p>Tous nos programmes sont con\u00e7us par des professionnels, afin de r\u00e9pondre aux besoins r\u00e9els des entreprises. Ces formations professionnalisantes en Blended Learning peuvent \u00eatre effectu\u00e9es <strong>en Formation Continue ou en BootCamp<\/strong>.<\/p><p>\u00c0 l&rsquo;issue du parcours, les apprenants re\u00e7oivent <strong>un dipl\u00f4me certifi\u00e9 par l&rsquo;Universit\u00e9 de la Sorbonne<\/strong>. Parmi les alumnis, 93% ont trouv\u00e9 un emploi imm\u00e9diatement.<\/p><p>Vous souhaitez vous lancer, mais ne savez pas comment financer cette formation ? Aucun probl\u00e8me ! Vous pouvez utiliser votre Compte Personnel de Formation, ou faire appel au P\u00f4le Emploi via l&rsquo;AIF. Ne perdez plus un instant, et d\u00e9couvrez <a href=\"https:\/\/datascientest.com\/formations-data\" target=\"_blank\" rel=\"noopener\">les formations DataScientest<\/a> !<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-99f5cdc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"99f5cdc\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bad14fa\" data-id=\"bad14fa\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3ab8340 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"3ab8340\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Commencer une formation en Data Science<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-557f734 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"557f734\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-cfaafe2\" data-id=\"cfaafe2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3349239 elementor-widget elementor-widget-text-editor\" data-id=\"3349239\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Vous savez tout sur l&rsquo;approche ACID. D\u00e9couvrez <a href=\"https:\/\/datascientest.com\/base-de-donnees-definition\" target=\"_blank\" rel=\"noopener\">notre dossier complet sur les bases de donn\u00e9es<\/a>, et <a href=\"https:\/\/datascientest.com\/sql-tout-savoir\" target=\"_blank\" rel=\"noopener\">notre pr\u00e9sentation du langage SQL<\/a>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2b2d752 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2b2d752\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-233d91f\" data-id=\"233d91f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9290f01 elementor-widget elementor-widget-html\" data-id=\"9290f01\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [{\n    \"@type\": \"Question\",\n    \"name\": \"ACID : qu'est-ce que c'est ?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Dans le domaine de l'informatique, ACID est un acronyme d\u00e9signant les termes : Atomicit\u00e9, Coh\u00e9rence, Isolation et Durabilit\u00e9.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Atomicit\u00e9\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"L'atomicit\u00e9 d'une transaction de base de donn\u00e9es signifie que tout changement effectu\u00e9 doit \u00eatre accompli jusqu'au bout. En cas d'interruption, par exemple une perte de connexion au beau milieu de l'op\u00e9ration, le changement doit \u00eatre annul\u00e9 et la base de donn\u00e9es doit revenir automatiquement \u00e0 son \u00e9tat ant\u00e9rieur au d\u00e9but de la transaction.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Coh\u00e9rence\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"La coh\u00e9rence, ou consistency en anglais, est un principe permettant de garantir qu'une transaction n'enfreigne les contraintes d'int\u00e9grit\u00e9 des donn\u00e9es fix\u00e9es pour une database.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Isolation\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Une transaction isol\u00e9e est consid\u00e9r\u00e9e comme \\\" s\u00e9rialisable \\\". Cela signifie que les transactions surviennent dans un ordre successif, plut\u00f4t que d'\u00eatre effectu\u00e9es en une fois.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Durabilit\u00e9\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"La durabilit\u00e9 est le quatri\u00e8me principe de l'approche ACID. Il permet d'assurer que tout changement apport\u00e9 \u00e0 la base de donn\u00e9es soit permanent, m\u00eame en cas de panne du syst\u00e8me.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"ACID : quels sont les avantages ?\u200b\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"En se conformant aux quatre principes de l'approche ACID, il est possible d'assurer la s\u00e9curit\u00e9 et l'int\u00e9grit\u00e9 des donn\u00e9es au sein d'une base de donn\u00e9es. De cette mani\u00e8re, elles peuvent apporter toute leur valeur \u00e0 l'entreprise.\"\n    }\n  }]\n}\n<\/script>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>L&rsquo;approche ACID (Atomicit\u00e9, Coh\u00e9rence, Isolation, Durabilit\u00e9) permet d&rsquo;assurer l&rsquo;int\u00e9grit\u00e9 des donn\u00e9es au sein d&rsquo;une base de donn\u00e9es. D\u00e9couvrez tout ce qu&rsquo;il y a \u00e0 savoir sur ce concept. Le Big Data offre de formidables possibilit\u00e9s. Toutefois, pour traiter les immenses volumes de donn\u00e9es g\u00e9n\u00e9r\u00e9s chaque jour, il est n\u00e9cessaire d&rsquo;utiliser les bases de donn\u00e9es. Une [&hellip;]<\/p>\n","protected":false},"author":77,"featured_media":75996,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2497],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ACID : tout savoir sur ce concept important en gestion de BDD<\/title>\n<meta name=\"description\" content=\"L&#039;approche ACID (Atomicit\u00e9, Coh\u00e9rence, Isolation, Durabilit\u00e9) permet d&#039;assurer l&#039;int\u00e9grit\u00e9 des donn\u00e9es au sein d&#039;une base de donn\u00e9es. D\u00e9couvrez tout ce qu&#039;il y a \u00e0 savoir sur ce concept important en gestion de bases de 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:\/\/datascientest.com\/acid\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ACID : tout savoir sur ce concept important en gestion de BDD\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/acid\" \/>\n<meta property=\"og:site_name\" content=\"Formation Data Science | DataScientest.com\" \/>\n<meta property=\"article:published_time\" content=\"2021-06-16T07:54:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-09T14:07:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/illu_ACID-10.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1405\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Raphael Kassel\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Raphael Kassel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/acid\",\"url\":\"https:\/\/datascientest.com\/acid\",\"name\":\"ACID : tout savoir sur ce concept important en gestion de BDD\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/#website\"},\"datePublished\":\"2021-06-16T07:54:09+00:00\",\"dateModified\":\"2023-11-09T14:07:05+00:00\",\"author\":{\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/6eca16f63daaafcbc96e15549b9d4ee1\"},\"description\":\"L'approche ACID (Atomicit\u00e9, Coh\u00e9rence, Isolation, Durabilit\u00e9) permet d'assurer l'int\u00e9grit\u00e9 des donn\u00e9es au sein d'une base de donn\u00e9es. D\u00e9couvrez tout ce qu'il y a \u00e0 savoir sur ce concept important en gestion de bases de donn\u00e9es.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/datascientest.com\/acid\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/datascientest.com\/#website\",\"url\":\"https:\/\/datascientest.com\/\",\"name\":\"Formation Data Science | DataScientest.com\",\"description\":\"Leader de la formation en Data Science\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/datascientest.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/6eca16f63daaafcbc96e15549b9d4ee1\",\"name\":\"Raphael Kassel\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/raph.jpeg\",\"contentUrl\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/raph.jpeg\",\"caption\":\"Raphael Kassel\"},\"description\":\"Raphael Kassel est le Head of Data Programs chez DataScientest. Il supervise une \u00e9quipe Data, impl\u00e9mente de nouveaux parcours comme \\\"Chef de projet IA\\\" et \\\"Data Product Manager\\\", et contribue \u00e0 la modernisation des op\u00e9rations du groupe. En collaboration \u00e9troite avec l'\u00e9quipe de d\u00e9veloppement, il adapte l'accompagnement acad\u00e9mique aux \u00e9volutions de l'\u00e9quipe data et \u00e0 l'internationalisation.\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/raphaelkassel\/\",\"Data Science\"],\"url\":\"https:\/\/datascientest.com\/author\/raphaelkassel\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"ACID : tout savoir sur ce concept important en gestion de BDD","description":"L'approche ACID (Atomicit\u00e9, Coh\u00e9rence, Isolation, Durabilit\u00e9) permet d'assurer l'int\u00e9grit\u00e9 des donn\u00e9es au sein d'une base de donn\u00e9es. D\u00e9couvrez tout ce qu'il y a \u00e0 savoir sur ce concept important en gestion de bases de donn\u00e9es.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/datascientest.com\/acid","og_locale":"fr_FR","og_type":"article","og_title":"ACID : tout savoir sur ce concept important en gestion de BDD","og_url":"https:\/\/datascientest.com\/acid","og_site_name":"Formation Data Science | DataScientest.com","article_published_time":"2021-06-16T07:54:09+00:00","article_modified_time":"2023-11-09T14:07:05+00:00","og_image":[{"width":2560,"height":1405,"url":"https:\/\/datascientest.com\/wp-content\/uploads\/2021\/06\/illu_ACID-10.png","type":"image\/png"}],"author":"Raphael Kassel","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Raphael Kassel","Dur\u00e9e de lecture estim\u00e9e":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/datascientest.com\/acid","url":"https:\/\/datascientest.com\/acid","name":"ACID : tout savoir sur ce concept important en gestion de BDD","isPartOf":{"@id":"https:\/\/datascientest.com\/#website"},"datePublished":"2021-06-16T07:54:09+00:00","dateModified":"2023-11-09T14:07:05+00:00","author":{"@id":"https:\/\/datascientest.com\/#\/schema\/person\/6eca16f63daaafcbc96e15549b9d4ee1"},"description":"L'approche ACID (Atomicit\u00e9, Coh\u00e9rence, Isolation, Durabilit\u00e9) permet d'assurer l'int\u00e9grit\u00e9 des donn\u00e9es au sein d'une base de donn\u00e9es. D\u00e9couvrez tout ce qu'il y a \u00e0 savoir sur ce concept important en gestion de bases de donn\u00e9es.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/datascientest.com\/acid"]}]},{"@type":"WebSite","@id":"https:\/\/datascientest.com\/#website","url":"https:\/\/datascientest.com\/","name":"Formation Data Science | DataScientest.com","description":"Leader de la formation en Data Science","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/datascientest.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/datascientest.com\/#\/schema\/person\/6eca16f63daaafcbc96e15549b9d4ee1","name":"Raphael Kassel","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/datascientest.com\/#\/schema\/person\/image\/","url":"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/raph.jpeg","contentUrl":"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/raph.jpeg","caption":"Raphael Kassel"},"description":"Raphael Kassel est le Head of Data Programs chez DataScientest. Il supervise une \u00e9quipe Data, impl\u00e9mente de nouveaux parcours comme \"Chef de projet IA\" et \"Data Product Manager\", et contribue \u00e0 la modernisation des op\u00e9rations du groupe. En collaboration \u00e9troite avec l'\u00e9quipe de d\u00e9veloppement, il adapte l'accompagnement acad\u00e9mique aux \u00e9volutions de l'\u00e9quipe data et \u00e0 l'internationalisation.","sameAs":["https:\/\/www.linkedin.com\/in\/raphaelkassel\/","Data Science"],"url":"https:\/\/datascientest.com\/author\/raphaelkassel"}]}},"_links":{"self":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts\/70852"}],"collection":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/users\/77"}],"replies":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/comments?post=70852"}],"version-history":[{"count":0,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts\/70852\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/media\/75996"}],"wp:attachment":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/media?parent=70852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/categories?post=70852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/tags?post=70852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}