cancel
Showing results for
Did you mean:

Find everything you need to get certified on Fabric—skills challenges, live sessions, exam prep, role guidance, and more. Get started

Anonymous
Not applicable

## Create a new column on if statement(Very basic support needed)

Hi im trying the most simple query. Any help?

``````if ([Actual End Date] < [Target End Date])
then 1
else 0``````

If date1 is less then date2 then put 1 in the column otherwise put 0.
Error: Expression.Error: We cannot convert the value null to type Logical.
Support?

1 ACCEPTED SOLUTION
Community Champion
``if ([Actual End Date] ?? #date(1,1,1)) < ([Target End Date] ?? #date(1,1,1)) then 1 else 0``

 Thanks to the great efforts by MS engineers to simplify syntax of DAX! Most beginners are SUCCESSFULLY MISLED to think that they could easily master DAX; but it turns out that the intricacy of the most frequently used RANKX() is still way beyond their comprehension! DAX is simple, but NOT EASY!
8 REPLIES 8
Community Champion
``if ([Actual End Date] ?? #date(1,1,1)) < ([Target End Date] ?? #date(1,1,1)) then 1 else 0``

 Thanks to the great efforts by MS engineers to simplify syntax of DAX! Most beginners are SUCCESSFULLY MISLED to think that they could easily master DAX; but it turns out that the intricacy of the most frequently used RANKX() is still way beyond their comprehension! DAX is simple, but NOT EASY!
Anonymous
Not applicable

Hi thanks for answering. I need to do the same thing but replace [Actual End Date] with Today() or something which works simular:

``if (DateTime.Now() < ([Target End Date] ?? #date(1,1,1)) then 1 else 0``

Something simular to above should work. Any support?

Super User

if (DateTime.LocalNow() <...

--Nate

I’m usually answering from my phone, which means the results are visualized only in my mind. You’ll need to use my answer to know that it works—but it will work!!
Super User

Ahh never thought to use the ?? In an if comparison--very cool.

--Nate

I’m usually answering from my phone, which means the results are visualized only in my mind. You’ll need to use my answer to know that it works—but it will work!!
Super User

You have a null in one of your date fields,  so null > date isn't valid. Try each if is null [Actual End Date] or [Actual End Date] < [Target End Date] then 1 else 0

--Nate

I’m usually answering from my phone, which means the results are visualized only in my mind. You’ll need to use my answer to know that it works—but it will work!!
Responsive Resident

I have tried on this dummy data and it is working as per your requirement.
I added one custom column with the formula mentioned below:

Try this and if my solution solves your doubt then please consider it as a solution.

Resolver II

Hi @Anonymous

We need more info, I did a test on a simple dataset and it works...send us more code

Frequent Visitor

It is very difficult for someone to help you in this case. if only this formula is not wrong. but it is used with many other formulas to know where is wrong.

Announcements

#### Europe’s largest Microsoft Fabric Community Conference

Join the community in Stockholm for expert Microsoft Fabric learning including a very exciting keynote from Arun Ulag, Corporate Vice President, Azure Data.