DATEDIFF('day', LOOKUP(MIN([Order Date]),-1), MIN([Order Date]))
La fonction DATEDIFF() trouve le nombre de parties de date spécifiées, dans ce cas des jours, entre deux dates. La date de début est LOOKUP(MIN([Order Date]),-1), qui renvoie la date une ligne avant.
Il est possible de calculer différemment les fonctions de table pour pouvoir personnaliser davantage le calcul. Dans l'étape 8 de cet exemple, nous redémarrons le décompte pour chaque client. Pour plus d'informations sur la modification des fonctions de table, consultez Transformer des valeurs avec des calculs de table.
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