The CALCULATE function in DAX is the magic key for many calculations we can do in DAX. However, it is not pretty intuitive how it works and I spent a lot of time trying to understand how it can be used.DAX的CALCULATE函数是很多应用场合的关键。然而,它的工作原理远没有看上去那么简单,需要...
DAX CALCULATE(<expression>[, <filter1> [, <filter2> [, …]]]) 参数 术语定义 expression要计算的表达式。 filter1, filter2,…(可选)定义筛选器或筛选修饰符函数的布尔表达式或表表达式。 用作第一个参数的表达式实质上与度量值相同。 筛选器可以是: ...
1- SUM DAX function SUM函数是一类聚合函数(aggregation function),用于计算一列中的所有数字之和(calculates the sum of all numbers in a column)。因此语法中引用字段列名称——这也是SUM函数的唯一变量(SUM support only single argument.)。 语法: SUM(<Column>) 这里介绍一个案例。 1.1 创建一个SUM函...
CALCULATE是DAX语言最重要的函数,之所以说它重要是因为它能改变可视化对象的初始筛选。(什么是初始筛选我们在之前章节有介绍)。 注:实际上还有一些其它函数能改变可视化对象的初始筛选,像CALCULATETABLE,CALCULATETABLE主要在DAX查询里使用,超出了本书介绍的范畴。 CALCULATE函数看似简单,实际上有很多关于它的知识点需要掌握,...
Learn how to use the DAX CALCULATE function effectively in your data analysis projects. Discover its syntax, examples, and applications.
如果以度量值为参数会得到类似下面这种错误。 A function ‘CALCULATE’ has been used in a True/False expression that is used as a table filter expression. This is not allowed. 不能再嵌套Calculate函数。 函数的返回值不能是一个全表扫面,或者一个表以及计算表。
CALCULATE is the most important function in DAX. Quite a sweeping statement you might think but as soon as you get to grips with CALCULATE, you'll quickly realize that there won't be many expressions you author in DAX where this function won't be required, even though you might think we...
This video introduces CALCULATE, the most powerful and complex function in DAX. Related article CALCULATE is the most powerful and complex function in DAX. In this article, we provide an introduction to CALCULATE, its behavior, and how to use it.Read related article ...
CALCULATE 和 CALCULATETABLE 是 DAX 中惟二可以修改筛选上下文的函数。实际上,CALCULATE 创建了一个新的筛选上下文,然后在新的上下文中计值表达式。因为新上下文的源自现有上下文,所以我们可以说它修改了计值上下文。
we are making it easier to specify filters in the DAX CALCULATE function. On the Service side, when you click on a dataset in the workspace list view you will be taken to our new dataset details page, which includes information about when the report was last refreshed as well as actions ...