COUNT个GROUPBY的DAX表达式 [英] DAX expression for COUNT of GROUPBY

问题描述

我是PowerBI的新手，正在编写DAX表达式。

I am new to PowerBI and writing DAX expressions.

我有一个表，其中的文本列具有不同的值。我要做的就是获取计数每个不同的价值。使用此SQL可以轻松实现，但我无法为其获取正确的DAX表达式。

I have a table with a text column with different values.All I want to do is get the count for each distinct value. It's easily achieved with this SQL but I can't get the right DAX expression for it.

select [value],count(*) as TagCount from Tags
group by [value]
order by TagCount desc

有帮助吗？

推荐答案

您可以在Power BI中执行以下类似操作：

You can do something similar in Power BI as follows:

SUMMARIZE(Tags, Tags[value], "TagCount", COUNT(Tags[value]))

或

SUMMARIZECOLUMNS(Tags[value], "TagCount", COUNT(Tags[value]))

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您也可以将其用作矩阵视觉对象，其中行的 Tags [value] 和度量 COUNT（Tags [value]）表示值。然后，您可以通过单击视觉对象上的列标题来对选择的任何列进行排序。

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You can also do this as a matrix visual with Tags[value] for the Rows and the measure COUNT(Tags[value]) for the Values. You can then sort by whichever column you choose by clicking the column heading on the visual.

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