{"id":183061,"date":"2022-12-09T19:00:00","date_gmt":"2022-12-09T19:00:00","guid":{"rendered":"https:\/\/datascientest.com\/?p=183061"},"modified":"2024-02-08T15:20:42","modified_gmt":"2024-02-08T15:20:42","slug":"datediff-power-bi","status":"publish","type":"post","link":"https:\/\/datascientest.com\/datediff-power-bi","title":{"rendered":"DATEDIFF sur Power BI : Calculer un intervalle entre 2 dates"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"183061\" class=\"elementor elementor-183061\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-46e369f e-flex e-con-boxed e-con\" data-id=\"46e369f\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-02f9f29 elementor-widget elementor-widget-heading\" data-id=\"02f9f29\" 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\">Sur Power BI, les fonctions DAX permettent d'effectuer de nombreux calculs sp\u00e9cifiques sur les donn\u00e9es. Il s'agit d'une vaste collection de formules pr\u00eates \u00e0 appliquer sur n'importe quels chiffres.<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-91a1f79 elementor-widget elementor-widget-text-editor\" data-id=\"91a1f79\" 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>L&rsquo;une de ces fonctions DAX est <strong>DATEDIFF<\/strong>. Elle est utilis\u00e9e sur Power BI pour <strong>calculer les intervalles de temps entre deux date<\/strong>s. Cet intervalle peut \u00eatre exprim\u00e9 en secondes, minutes, heures, jours, semaines, mois, trimestres ou ann\u00e9es.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9ec5102 e-flex e-con-boxed e-con\" data-id=\"9ec5102\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-82a7678 elementor-widget elementor-widget-heading\" data-id=\"82a7678\" 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\">Qu'est-ce que Power BI ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-542a58e elementor-widget elementor-widget-text-editor\" data-id=\"542a58e\" 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><a href=\"https:\/\/datascientest.com\/power-bi\">Power BI<\/a> est une plateforme de Business Intelligence compl\u00e8te d\u00e9velopp\u00e9e par Microsoft. Elle regroupe de nombreux outils d\u00e9di\u00e9s \u00e0 l&rsquo;<strong>informatique d\u00e9cisionnelle<\/strong>, notamment pour la collecte, l&rsquo;analyse et la visualisation de donn\u00e9es.<\/p><p>Cette plateforme est disponible sous forme de logiciel local, mais \u00e9galement <strong>en service cloud sur<\/strong> <a href=\"https:\/\/datascientest.com\/differentes-certifications-microsoft-azure\">Microsoft Azure<\/a> et<strong> en application<\/strong> mobile sur iOS et Android. Elle s&rsquo;int\u00e8gre avec les logiciels de la suite Office 365.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1a2c43d e-flex e-con-boxed e-con\" data-id=\"1a2c43d\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-26b3f83 elementor-widget elementor-widget-heading\" data-id=\"26b3f83\" 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\">Qu'est-ce que DAX sur Power BI ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f24edc elementor-widget elementor-widget-text-editor\" data-id=\"8f24edc\" 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>Data Analysis Expressions ou DAX est <strong>un langage d&rsquo;expression de formules explicitement con\u00e7u pour la gestion de mod\u00e8les de donn\u00e9es<\/strong>. Les formules DAX incluent des fonctions et op\u00e9rateurs pouvant \u00eatre utilis\u00e9s pour cr\u00e9er des formules et des expressions sur Power BI, Power Pivot sur Excel, et sur le cloud Azure.<\/p><p>Au total, DAX rassemble <strong>plus de 200 formules<\/strong>. Elles sont utilis\u00e9es pour l&rsquo;<a href=\"https:\/\/datascientest.com\/data-analysis-tout-savoir\">analyse de donn\u00e9es<\/a> et la <a href=\"https:\/\/datascientest.com\/power-bi-exemple\">production de rapports<\/a>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64243d2 elementor-widget elementor-widget-image\" data-id=\"64243d2\" data-element_type=\"widget\" data-widget_type=\"image.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-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1280\" height=\"726\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/dax-dataviz-powerbi.jpg\" class=\"attachment-full size-full wp-image-183071\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/dax-dataviz-powerbi.jpg 1280w, https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/dax-dataviz-powerbi-300x170.jpg 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/dax-dataviz-powerbi-1024x581.jpg 1024w, https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/dax-dataviz-powerbi-768x436.jpg 768w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-63cb425 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"63cb425\" 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\/formation-power-bi\">\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\">Se former \u00e0 Power BI<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-de5a9df e-flex e-con-boxed e-con\" data-id=\"de5a9df\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7e0ba24 elementor-widget elementor-widget-heading\" data-id=\"7e0ba24\" 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\">Qu'est-ce que Power BI DATEDIFF ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be880d1 elementor-widget elementor-widget-text-editor\" data-id=\"be880d1\" 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 utilisant Power BI, il est souvent n\u00e9cessaire de calculer les diff\u00e9rences de temps entre deux dates dans un tableau. Cette t\u00e2che peut sembler complexe, mais <strong>il suffit d&rsquo;utiliser la formule DAX DATEDIFF<\/strong>.<\/p><p>La seule condition est de savoir quels sont les points de d\u00e9part et de fin au format de date ou d&rsquo;heure, et de pouvoir pr\u00e9ciser le type d&rsquo;intervalle souhait\u00e9.<\/p><p>La <strong>fonction DAX DATEDIFF<\/strong> calcule l&rsquo;intervalle de temps entre deux dates, et pr\u00e9sente le r\u00e9sultat en secondes, minutes, heures, jours, semaines, mois, trimestres ou ann\u00e9es.<\/p><p>La syntaxe de Power BI DATEDIFF prend la forme : \u00ab DATEDIFF (, , ) \u00bb.<\/p><p>Le param\u00e8tre \u00ab start_date \u00bb est une valeur scalaire de date ou d&rsquo;heure, au m\u00eame titre que le param\u00e8tre \u00ab end_date \u00bb. Le param\u00e8tre \u00ab interval \u00bb est l&rsquo;intervalle \u00e0 utiliser pour comparer les dates, et peut \u00eatre <strong>\u00ab SECOND \u00bb, \u00ab MINUTE \u00bb, \u00ab HOUR \u00bb, \u00ab DAY \u00bb, \u00ab WEEK \u00bb, \u00ab MONTH \u00bb, \u00ab QUARTER \u00bb ou \u00ab YEAR \u00bb<\/strong>.<\/p><p>En r\u00e9sultat, la formule DAX DATEDIFF de Power BI retourne un nombre entier. Il s&rsquo;agit du nombre d&rsquo;intervalles travers\u00e9s entre les deux dates.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc0371b elementor-widget elementor-widget-image\" data-id=\"dc0371b\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"625\" height=\"247\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/dax-datediff1.png\" class=\"attachment-large size-large wp-image-183078\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/dax-datediff1.png 625w, https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/dax-datediff1-300x119.png 300w\" sizes=\"(max-width: 625px) 100vw, 625px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-235f923 e-flex e-con-boxed e-con\" data-id=\"235f923\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fc4621d elementor-widget elementor-widget-heading\" data-id=\"fc4621d\" 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 calculer l'intervalle entre 2 dates avec DATEDIFF ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-03d4d67 elementor-widget elementor-widget-text-editor\" data-id=\"03d4d67\" 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>Avant de commencer \u00e0 utiliser DATEDIFF sur Power BI, assurez-vous que la valeur donn\u00e9e pour le param\u00e8tre <strong>\u00ab INTERVAL \u00bb<\/strong> soit une constante et non une ligne. Elle ne doit donc pas \u00eatre entour\u00e9e par des doubles guillemets.<\/p><p>La bonne syntaxe sera donc <strong>\u00ab = DATEDIFF(&lsquo;Dates Table'[Sart Date],&rsquo;Dates Table'[End Date],MONTH) \u00bb<\/strong> et non \u00ab = DATEDIFF(&lsquo;Dates Table'[Sart Date],&rsquo;Dates Table'[End Date],\u00a0\u00bbMONTH\u00a0\u00bb) \u00bb.<\/p><p>Si vous avez un tableau de dates sur Power BI et souhaitez calculer les diff\u00e9rences de date entre les colonnes de date de d\u00e9but et date de fin pour chaque ligne, voici la marche \u00e0 suivre.<\/p><p>Depuis <a href=\"https:\/\/datascientest.com\/telechargement-et-installation-power-bi-desktop\">Power BI Desktop<\/a>, cliquez sur <strong>\u00ab Data Mode \u00bb<\/strong>. \u00c0 gauche, cliquez sur le tableau pour lequel vous voulez ajouter une nouvelle colonne. Dans l&rsquo;onglet <strong>\u00ab outils de tableau \u00bb<\/strong>, cliquez sur <strong>\u00ab nouvelle colonne \u00bb<\/strong> pour cr\u00e9er une nouvelle colonne en utilisant DAX.<\/p><p>Il vous suffit ensuite d&rsquo;\u00e9crire la formule suivante pour calculer les diff\u00e9rences de date entre deux dates en ann\u00e9es : \u00ab Years between = DATEDIFF(&lsquo;Dates Table'[Start Date],&rsquo;Dates Table'[End Date],YEAR) \u00bb.<\/p><p>Pour mesure la diff\u00e9rence de date avec un autre type d&rsquo;intervalle, changez simplement la valeur du param\u00e8tre \u00ab interval \u00bb. Par exemple, pour calculer la diff\u00e9rence en mois, entrez la formule : <strong>\u00ab Months between = DATEDIFF(&lsquo;Dates Table'[Start Date],&rsquo;Dates Table'[End Date],MONTH) \u00bb<\/strong>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41d61ab elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"41d61ab\" 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\/formation-power-bi\">\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\">Apprendre \u00e0 utiliser Power BI<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6f81b43 e-flex e-con-boxed e-con\" data-id=\"6f81b43\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-687b9fe elementor-widget elementor-widget-heading\" data-id=\"687b9fe\" 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 utiliser DATEDIFF dans une mesure ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e93ed1 elementor-widget elementor-widget-text-editor\" data-id=\"6e93ed1\" 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 fonction DAX DATEDIFF de Power BI peut aussi \u00eatre utilis\u00e9e avec des dates constantes dans une mesure, pour <strong>calculer la diff\u00e9rence deux mois entre deux dates fixes<\/strong> comme 2020,3,1 et 2022,3,31.<\/p><p>Il suffit d&rsquo;entrer la formule : \u00ab Months = DATEDIFF (DATE (2020,3,1), DATE (2022,3,31), MONTH) \u00bb. L\u00e0 encore, l&rsquo;intervalle \u00ab MONTH \u00bb peut \u00eatre remplac\u00e9 par \u00ab SECOND \u00bb, \u00ab MINUTE \u00bb, \u00ab HOUR \u00bb, \u00ab DAY \u00bb, \u00ab WEEK \u00bb, \u00ab MONTH \u00bb, \u00ab QUARTER \u00bb ou \u00ab YEAR \u00bb.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-330d191 elementor-widget__width-initial elementor-widget elementor-widget-code-highlight\" data-id=\"330d191\" data-element_type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"prismjs-tomorrow  \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-markup \">\n\t\t\t\t<code readonly=\"true\" class=\"language-markup\">\n\t\t\t\t\t<xmp>--  DATEDIFF computes the delta between two dates, using different units of measure\r\n--  YEAFRAC returns the delta as a fraction (in years)\r\nEVALUATE\r\nVAR StartDate =  DATE ( 2011, 01, 01 )\r\nVAR EndDate =    DATE ( 2012, 12, 15 )\r\nRETURN\r\n    {\r\n        ( \"DATEDIFF Year\",     DATEDIFF ( StartDate, EndDate, YEAR ) ),\r\n        ( \"DATEDIFF Quarter\",  DATEDIFF ( StartDate, EndDate, QUARTER ) ),\r\n        ( \"DATEDIFF Month\",    DATEDIFF ( StartDate, EndDate, MONTH ) ),\r\n        ( \"DATEDIFF Day\",      DATEDIFF ( StartDate, EndDate, DAY ) ),\r\n        ( \"Subtraction-1\",     INT ( EndDate - StartDate ) ),\r\n        ( \"Subtraction-2\",     CONVERT ( EndDate - StartDate, INTEGER ) ),\r\n        ( \"YEARFRAC\",          YEARFRAC ( StartDate, EndDate ) )\r\n    }   <\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e25019c elementor-widget elementor-widget-text-editor\" data-id=\"e25019c\" 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>Notons que si le param\u00e8tre <strong>\u00ab start_date \u00bb<\/strong> est plus large que le param\u00e8tre <strong>\u00ab end_date \u00bb<\/strong>, la fonction DATEDIFF retourne une valeur n\u00e9gative. Il s&rsquo;agit donc d&rsquo;une erreur de syntaxe \u00e0 corriger.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0e30da0 e-flex e-con-boxed e-con\" data-id=\"0e30da0\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0d18805 elementor-widget elementor-widget-heading\" data-id=\"0d18805\" 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 calculer la diff\u00e9rence entre FIRSTDATE et LASTDATE ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be1f9cb elementor-widget elementor-widget-text-editor\" data-id=\"be1f9cb\" 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>Il est \u00e9galement possible de cr\u00e9er des mesures utilisant la fonction DAX DATEDIFF pour calculer les mois entre la <strong>FIRSTDATE<\/strong> (premi\u00e8re date) et la <strong>LASTDATE<\/strong> (derni\u00e8re date) du tableau.<\/p><p>Pour ce faire, il suffit d&rsquo;entrer la formule : \u00ab MonthDurationMeasure = DATEDIFF(FIRSTDATE(&lsquo;Table'[Sart Date]), LASTDATE(&lsquo;Table'[End Date]), MONTH) \u00bb.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d5a9300 e-flex e-con-boxed e-con\" data-id=\"d5a9300\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b45cef8 elementor-widget elementor-widget-heading\" data-id=\"b45cef8\" 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 calculer la diff\u00e9rence de date \u00e0 partir d'aujourd'hui ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-812c33f elementor-widget elementor-widget-text-editor\" data-id=\"812c33f\" 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>Enfin, on peut utiliser la fonction DATEDIFF pour calculer les ann\u00e9es s\u00e9parant une date sp\u00e9cifique de la date d&rsquo;aujourd&rsquo;hui. La formule \u00e0 \u00e9crire est \u00ab Years between End date and today = DATEDIFF(2020,4,1 ,TODAY(),YEAR) \u00bb.<\/p><p>De m\u00eame, une formule permet de calculer les ann\u00e9es entre une date de colonne et aujourd&rsquo;hui : <strong>\u00ab Years between date and today = DATEDIFF(&lsquo;Table'[End Date],Today(),Year) \u00bb<\/strong>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-743d5a7 e-flex e-con-boxed e-con\" data-id=\"743d5a7\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b6c98d5 elementor-widget elementor-widget-heading\" data-id=\"b6c98d5\" 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 apprendre \u00e0 ma\u00eetriser Power BI ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1396cab elementor-widget elementor-widget-text-editor\" data-id=\"1396cab\" 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 fonction DATEDIFF est tr\u00e8s utile pour <strong>calculer la diff\u00e9rence de temps entre deux dates sur Power BI<\/strong>. Toutefois, il ne s&rsquo;agit que de l&rsquo;une des nombreuses formules DAX disponibles.<\/p><p>Afin d&rsquo;apprendre \u00e0 manier Power BI et toutes ses fonctionnalit\u00e9s les plus subtiles, <strong>vous pouvez choisir DataScientes<\/strong>t. Notre formation s&rsquo;effectue int\u00e9gralement \u00e0 distance, en 2 \u00e0 5 jours.<\/p><p>Vous pouvez choisir entre le programme <strong>d\u00e9butant<\/strong> sur trois jours, ou le programme <strong>avanc\u00e9<\/strong> sur deux jours. La formation <strong>\u00ab ma\u00eetrise compl\u00e8te \u00bb<\/strong> regroupe les deux programmes et dure 38 heures r\u00e9parties sur cinq jours.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-51cdf6c elementor-widget elementor-widget-image\" data-id=\"51cdf6c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1085\" height=\"343\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/datascientest-formation-powerbi.png\" class=\"attachment-full size-full wp-image-183095\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/datascientest-formation-powerbi.png 1085w, https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/datascientest-formation-powerbi-300x95.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/datascientest-formation-powerbi-1024x324.png 1024w, https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/datascientest-formation-powerbi-768x243.png 768w\" sizes=\"(max-width: 1085px) 100vw, 1085px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d212e9 elementor-widget elementor-widget-text-editor\" data-id=\"0d212e9\" 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 premi\u00e8re partie du cursus permet d&rsquo;<strong>apprendre \u00e0 utiliser les diff\u00e9rents outils Power BI comme le langage DAX<\/strong> ou le moteur de requ\u00eate <a href=\"https:\/\/datascientest.com\/booster-sa-productivite-grace-a-powerquery\">Power Query<\/a>. Vous apprendrez aussi \u00e0 analyser les donn\u00e9es avec la plateforme et \u00e0 cr\u00e9er des tableaux de bord pour la prise de d\u00e9cision.<\/p><p>La seconde partie permet d&rsquo;approfondir le maniement de l&rsquo;outil. Vous apprendrez \u00e0 utiliser chaque service de fa\u00e7on plus avanc\u00e9e, et d\u00e9couvrirez les notions plus complexes de <a href=\"https:\/\/datascientest.com\/dataflow-power-bi\">DataFlows<\/a> et <strong>Incremental Refresh<\/strong>.<\/p><p>Tous nos professeurs ont le statut Microsoft Certified Trainer, et la formation inclut le passage de l&rsquo;<a href=\"https:\/\/datascientest.com\/pl-300-tout-savoir\">examen de certification Microsoft PL-300<\/a> Power BI Data Analyst Associate.<\/p><p>Pour le financement, notre <strong>organisme reconnu par l&rsquo;\u00c9tat<\/strong> est \u00e9ligible au <a href=\"https:\/\/datascientest.com\/cpf-comment-utiliser-son-compte-personnel-de-formation\">Compte Personnel de Formation<\/a>. D\u00e9couvrez DataScientest d\u00e8s maintenant pour ma\u00eetriser Power BI !<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-34bbdff elementor-widget elementor-widget-text-editor\" data-id=\"34bbdff\" 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 la formule DATEDIFF de Power BI. Pour plus d&rsquo;informations sur le m\u00eame sujet, d\u00e9couvrez <a href=\"https:\/\/datascientest.com\/tout-savoir-sur-les-fonctions-power-bi-calendrier\">notre dossier complet sur Power BI Calendar<\/a> et <a href=\"https:\/\/datascientest.com\/dax-power-bi\">notre dossier sur DAX<\/a>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d7879a elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"4d7879a\" 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\/formation-power-bi\">\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\">S'inscrire \u00e0 la formation Power BI<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-147d8b1 e-flex e-con-boxed e-con\" data-id=\"147d8b1\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-21df5aa elementor-widget elementor-widget-html\" data-id=\"21df5aa\" 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\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Qu'est-ce que Power BI ?\u200b\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Power BI est une plateforme de Business Intelligence compl\u00e8te d\u00e9velopp\u00e9e par Microsoft. Elle regroupe de nombreux outils d\u00e9di\u00e9s \u00e0 l'informatique d\u00e9cisionnelle, notamment pour la collecte, l'analyse et la visualisation de donn\u00e9es. Cette plateforme est disponible sous forme de logiciel local, mais \u00e9galement en service cloud sur Microsoft Azure et en application mobile sur iOS et Android. Elle s'int\u00e8gre avec les logiciels de la suite Office 365.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Qu'est-ce que DAX sur Power BI ?\u200b\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Data Analysis Expressions ou DAX est un langage d'expression de formules explicitement con\u00e7u pour la gestion de mod\u00e8les de donn\u00e9es. Les formules DAX incluent des fonctions et op\u00e9rateurs pouvant \u00eatre utilis\u00e9s pour cr\u00e9er des formules et des expressions sur Power BI, Power Pivont sur Excel, et sur le cloud Azure.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Comment utiliser DATEDIFF dans une mesure ?\u200b\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"La fonction DAX DATEDIFF de Power BI peut aussi \u00eatre utilis\u00e9e avec des dates constantes dans une mesure, pour calculer la diff\u00e9rence deux mois entre deux dates fixes comme 2020,3,1 et 2022,3,31. Il suffit d'entrer la formule : \u00ab Months = DATEDIFF (DATE (2020,3,1), DATE (2022,3,31), MONTH) \u00bb. L\u00e0 encore, l'intervalle \u00ab MONTH \u00bb peut \u00eatre remplac\u00e9 par \u00ab SECOND \u00bb, \u00ab MINUTE \u00bb, \u00ab HOUR \u00bb, \u00ab DAY \u00bb, \u00ab WEEK \u00bb, \u00ab MONTH \u00bb, \u00ab QUARTER \u00bb ou \u00ab YEAR \u00bb.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Comment calculer la diff\u00e9rence de date \u00e0 partir d'aujourd'hui ?\u200b\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Enfin, on peut utiliser la fonction DATEDIFF pour calculer les ann\u00e9es s\u00e9parant une date sp\u00e9cifique de la date d'aujourd'hui. La formule \u00e0 \u00e9crire est \u00ab Years between End date and today = DATEDIFF(2020,4,1 ,TODAY(),YEAR) \u00bb. De m\u00eame, une formule permet de calculer les ann\u00e9es entre une date de colonne et aujourd'hui : \u00ab Years between date and today = DATEDIFF('Table'[End Date],Today(),Year) \u00bb.\"\r\n    }\r\n  }]\r\n}\r\n<\/script>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Sur Power BI, les fonctions DAX permettent d&rsquo;effectuer de nombreux calculs sp\u00e9cifiques sur les donn\u00e9es. Il s&rsquo;agit d&rsquo;une vaste collection de formules pr\u00eates \u00e0 appliquer sur n&rsquo;importe quels chiffres. L&rsquo;une de ces fonctions DAX est DATEDIFF. Elle est utilis\u00e9e sur Power BI pour calculer les intervalles de temps entre deux dates. Cet intervalle peut \u00eatre [&hellip;]<\/p>\n","protected":false},"author":74,"featured_media":183062,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2493],"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>DATEDIFF sur Power BI : Calculer un intervalle entre 2 dates<\/title>\n<meta name=\"description\" content=\"DATEDIFF est une fonction DAX utilis\u00e9e sur Power BI pour calculer les intervalles de temps entre deux dates. Les d\u00e9tails dans cet article.\" \/>\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\/datediff-power-bi\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DATEDIFF sur Power BI : Calculer un intervalle entre 2 dates\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/datediff-power-bi\" \/>\n<meta property=\"og:site_name\" content=\"Formation Data Science | DataScientest.com\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-09T19:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-02-08T15:20:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/dax-datediff.png\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"359\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Antoine Tardivon\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Antoine Tardivon\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/datediff-power-bi\",\"url\":\"https:\/\/datascientest.com\/datediff-power-bi\",\"name\":\"DATEDIFF sur Power BI : Calculer un intervalle entre 2 dates\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/#website\"},\"datePublished\":\"2022-12-09T19:00:00+00:00\",\"dateModified\":\"2024-02-08T15:20:42+00:00\",\"author\":{\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/40cb5b6317e138be77b9dd23007cab57\"},\"description\":\"DATEDIFF est une fonction DAX utilis\u00e9e sur Power BI pour calculer les intervalles de temps entre deux dates. 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