# How to create measure over Date Dimensions

## Question

JT59611 on Thu, 28 Dec 2017 23:04:28

sorry for the newbie question...

Got a tabular model.  1 Fact Record with Start Date=1/1/2017 and End Date 5/31/2017.  I want to create a measure that I can use to count that 1 fact record over a period of date dimension I use.  Please help... how do I formulate the measure?  Thank you very much.

## Replies

willson yuan on Fri, 29 Dec 2017 07:45:20

Hi JT59611,

Are you using SSAS tabular? If so, please create date table which only contain the first date in a month, something like below:
Date        YM( year(Date[Date])*100 + MONTH(Date[Date])) YearMonth = FORMAT(Date[Date],"YYYY-MMM")
1/1/2017    201701                                                             2017-Jan

Delete the relationship between this date table and your fact table:

Then you can create a measure as below:

```CountOfRecords =
COUNTROWS (
FILTER (
'Fact',
'Fact'[Start Date] <= MAX ( CalDate[Date] )
&& 'Fact'[End Date] >= MAX ( CalDate[Date] )
)
)```

JT59611 on Fri, 29 Dec 2017 17:12:08

Hello Willson,

Thank you very much for that informative answer (and Happy New Year!!!)... let me make things complex to reflect a more realistic scenario.

How can I make it dynamic enough so that when I drag in the date dimension the measure will re-calculate dynamically?  For example, the users would like to display (depending on their needs) these counts on end-of-day, end-of-week, end-of-month, or end-of-quarter.  So if I drag the date dimension and filter the dimension, the measure will re-calculate based on whatever the filter is.  In addition, the user will use other measure to present:

• No of Product Started
• No of Product Still Active
• No of Product Ended

These three measure would be presented "As of End of Day", "As of End of Week", "As of End of Month", "As of End of Quarter".  I have a date dimension that has all of these information... it's just a matter of using them in the filter.

Reporting "As of End-of-Month"

willson yuan on Mon, 01 Jan 2018 06:12:44

Hi JT59611,

As you can see from below images, since this works fine at date level, it will work for other levels also :

Best Regards
Willson Yuan
MSDN Community Support
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JT59611 on Mon, 04 Jun 2018 18:47:30

Hello... sorry the suggested solution doesn't look like it's going to work.  I need a solution that will enable me to present the different measures side-by-side.  Also, different dimensions may be used to slice-and-dice the data.  Let me elaborate some detailed sample:

This below has a date dimension filtered with EndOfMonth only.  There will be a chance that the user will select different variation of the dimensions.  I'd need the measure to auto-calculate based on the dimension given.  Please help.  Thanks.

SSAS Tabular Model.  Measures: CountStarted (good), CountStillActive (help), CountEnded (good)

BTW, I'm after the measure: CountStillActive.  Basically, CountStillActive will measure the number of products that are still active as of that date dimension (row).

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