topic Re: Comparing two dates when one field is text and the other a date in Developer

Comparing two dates when one field is text and the other a date

Dan27 — Thu, 03 May 2018 16:51:52 GMT

Hello

I'm hoping someone can help. In my data I've got two different fields. An opened date and a closed date. My opened date always contains an date so the format is date. The closed date doesn't always contain a closed date so may sometimes contain "NULL".

This field is then formatted as text and when I try to work out the difference between the 2 dates I get an error.

As this is the way the dat pulls through from the source data I'd ideally not like to have to replace blanks etc.. within PowerBI but put it in the formula.

I want to write =IF(opened_date)=(closed_date),1,0)

Please help

Thanks

Re: Comparing two dates when one field is text and the other a date

v-micsh-msft — Fri, 04 May 2018 01:42:47 GMT

For the NUll, we have a function IsBlank() could be used.

You could first check if the closed date is blank first.

The formula should be changed as below:

IF(Or(!(opened_date)=(closed_date), IsBlank(closed_date)),0,1)

Regards,

Michael

Re: Comparing two dates when one field is text and the other a date

Dan27 — Fri, 04 May 2018 07:28:56 GMT

Thanks Michael, however when I try this I still get the error below

The syntax for '!' is incorrect. (DAX(IF(Or(!(opened_date)=(closed_date), IsBlank(closed_date)),0,1))).

Re: Comparing two dates when one field is text and the other a date

v-micsh-msft — Fri, 04 May 2018 07:47:23 GMT

My bad.

Try the following:

IF(Or(not((opened_date)=(closed_date)), IsBlank(closed_date)),0,1)

Regards,

Michael

Re: Comparing two dates when one field is text and the other a date

Dan27 — Fri, 04 May 2018 07:53:30 GMT

Thanks Michael. That cleared that error but I still get the following:

DAX comparison operations do not support comparing values of type Date with values of type Text. Consider using the VALUE or FORMAT function to convert one of the values.