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Anonymous
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## Dax - Related - Help

Hi,

I have a holiday table which has

Date                           Number

01/01/2016                1

02/01/2016                2

etc and in my fact table I have

TDD Date

Basically I am wanting a column/measure in my fact table that gets the number for todays date and minus the TDD Number.

Thanks

1 ACCEPTED SOLUTION

Accepted Solutions
Super Contributor

## Re: Dax - Related - Help

Hi @Anonymous,

Did you mean this?

Measure:

```Minus Value =
VAR TDDNum =
CALCULATE (
MAX ( Holiday[ID] ),
FILTER ( Holiday, Holiday[Date] = MAX ( 'Fact'[TDD Date] ) )
)
VAR TodayNum =
CALCULATE ( MAX ( Holiday[ID] ), Holiday[Date] = TODAY () )
RETURN
TDDNum - TodayNum```

Thanks,
Xi Jin.

3 REPLIES 3
Super Contributor

## Re: Dax - Related - Help

Hi @Anonymous,

First what are today's number and the TDD number? What's the relationship between holiday table and fact table? And what's the logic to make today's number minus the TDD number?

Please share us more information about your requirement like your table structure and some sample data with its expected result.

Thanks,
Xi Jin.

Anonymous
Not applicable

## Re: Dax - Related - Help

Holiday Table

Date                  ID

01/01/2001        2

02/01/2001        3

19/04/2018        500

Fact Table

TDD Date

01/01/2001

I am joining the two tables on date and I am wanting to get the related ID for tdd date and minus that from todays date ID

Thanks

Super Contributor

## Re: Dax - Related - Help

Hi @Anonymous,

Did you mean this?

Measure:

```Minus Value =
VAR TDDNum =
CALCULATE (
MAX ( Holiday[ID] ),
FILTER ( Holiday, Holiday[Date] = MAX ( 'Fact'[TDD Date] ) )
)
VAR TodayNum =
CALCULATE ( MAX ( Holiday[ID] ), Holiday[Date] = TODAY () )
RETURN
TDDNum - TodayNum```

Thanks,
Xi Jin.

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