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KWelsh8144
Helper I
Helper I

Replacing a value in direct query mode

Hi, is it possible to add a column and add dax that would include something like.. if text.contains([date], "1800" then "" else ([date])? The problem is there is a default date in the view I'm using and we are unable to update the view or build a new one at this time. The default date replaces anything that has a null value.  I am trying to make the default date show as null, but I'm not sure how to do that in direct query mode. Is this possible?

1 ACCEPTED SOLUTION
v-yuezhe-msft
Microsoft
Microsoft

@KWelsh8144 ,

Please perform the steps below.

1. Make sure you have changed the type of DueDate field to Text in Power BI Query Editor.
1.png

2. Load data to Data view of Power BI Desktop, then create the following column.

Updated Due Date = if(find("1899",vProjects[DueDate],1,0)>0, BLANK(),vProjects[DueDate])


3. Change the data type of the new column  to Date.
2.png

Regards,
Lyida

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

9 REPLIES 9
KWelsh8144
Helper I
Helper I

@v-yuezhe-msft  Thanks! This worked!

v-yuezhe-msft
Microsoft
Microsoft

@KWelsh8144 ,

Please perform the steps below.

1. Make sure you have changed the type of DueDate field to Text in Power BI Query Editor.
1.png

2. Load data to Data view of Power BI Desktop, then create the following column.

Updated Due Date = if(find("1899",vProjects[DueDate],1,0)>0, BLANK(),vProjects[DueDate])


3. Change the data type of the new column  to Date.
2.png

Regards,
Lyida

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

KWelsh8144
Helper I
Helper I

@v-yuezhe-msft If I change the new column you indicated I needed, to show the invalid dates as null like mentioned above, to a date, it shows the invalid date as 1/1/1900 now.

 

This was the new column's dax i used:

**Updated Due Date = if(find("1899",vProjects[DueDate],1,0)>0, "",vProjects[DueDate])
 
If i change that column to date, the dates with "1899" show as 01/01/1900. What can I do?
v-yuezhe-msft
Microsoft
Microsoft

@KWelsh8144 ,

Click on your date field, then change data type and format under modeling tab.
Capture.PNG

Regards,
Lydia

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
KWelsh8144
Helper I
Helper I

@v-yuezhe-msft So I changed the data type to text, but then it gives me a long date with time. For example, it now shows as: May 16 2018 12:00AM. I also use the dates in the filters, so its appear as a drop down list instead of a 'slider' style now that i've changed it to text. Is there anyway to 1) make the date only show as 05/16/2018  and 2) so that the dates can be used in a filter the way the other dates are with a date range/slider instead of a dropdown

v-yuezhe-msft
Microsoft
Microsoft

@KWelsh8144,

Make sure the data type of your field is text rather than date.

Regards,
Lydia

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
KWelsh8144
Helper I
Helper I

@v-yuezhe-msft Thanks - however that turn is returning an error that stats "Expressions that yield variant data-type cannot be used to define calculated columns." How can I fix that? The date that I'm trying to get rid of is actually 12/30/1899. So I tried with "1899" and also "12/30/1899" but neither are working. I'm not sure why it's throwing the error.

v-yuezhe-msft
Microsoft
Microsoft

 
Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
v-yuezhe-msft
Microsoft
Microsoft

@KWelsh8144,

Please use the DAX as below.

Column = IF(FIND("1800",'Table'[Date],1,0)>0,"",'Table'[Date])



Regards,
Lydia

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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