由于使用频次高,微软专门为此打造了一个系列的日期分析相关函数,称为时间智能函数(Time Intelligence Functions),免去了报告开发者通过CALCULATE+FILTER+ALL(Dim_Date)+指定筛选条件这种较为复杂的方式去修改上下文,直接将时间智能函数用于CALCULATE的第二参数,甚至有些函数直接省略了CALCULATE,大大提升了代码的书写效率和可...
Jeffrey: We needed a language that can elegantly express core BI concepts, is friendly to business users without formal programming training, and can be easily implemented to handle billions of rows of data efficiently. We had considered three existing programming languages: Excel formulas, SQL, MDX...
Calculation groups is a powerful feature that allows you to apply dynamic calculations to your existing measures. For example, you can create a calculation group that applies time intelligence functions as calculation items, such as year-to-date, quarter-to-date, or month-to-date, to any measur...
This is a small improvement to the back-end engine that speeds up the modelling operations by not blocking them while visual controls are refreshing. Time Intelligence with built-in date hierarchy fields With this version of the Power BI Desktop you can now use DAX time intelligence functions wi...
PREVIOUSQUARTER, a time intelligence function, is nested as an argument passed to CALCULATE, a filter function. DAX formulas can contain up to 64 nested functions. It’s unlikely a formula would ever contain so many nested functions. In fact, such a formula would be difficult to create and ...
level to use, such as year, month, or day. This built-in date hierarchy isn't available with DirectQuery. If there's aDatetable available in the underlying source, as is common in many data warehouses, you can use the Data Analysis Expressions (DAX) time-intelligence functions as usual....
開啟Power BI 服務 (app.powerbi.com),並確定您使用的是 Power BI 體驗。 在瀏覽窗格中選取 [ 學習 ]。 在[學習中心] 頁面的 [範例報告] 底下,水平捲動直到您看到人工智慧範例為止。 選取範例。 Power BI 會將報表和數據集儲存至我的 工作區。 選取報表以檢視範例報表。
開啟Power BI 服務 (app.powerbi.com),並確定您使用的是 Power BI 體驗。 在瀏覽窗格中選取 [ 學習 ]。 在[學習中心] 頁面的 [範例報告] 底下,水平捲動直到您看到人工智慧範例為止。 選取範例。 Power BI 會將報表和數據集儲存至我的 工作區。 選取報表以檢視範例報表。
This session will look at the Date Table in a Tabular Model in Power BI. The flow will continue into the DAX functions most useful. There will be a guide with example code for groupings and filters. The Time Intelligence in Power BI data models is one option a developer should always in...
PowerBI DAX终极指南第二版英文原版电子版开放购买。 今日您已经可以在微软书店或亚马逊正式购买到DAX终极指南第二版英文原版电子版。全称为:《Definitive Guide to DAX, The: Business intelligence for Microsoft PowerBI,SQL ServerAnalysis Services, and Excel, 2nd Edition》。