The Inspire Cyber Monday promo has been extended to Dec. 1! This offer is discounted off the Early Bird price and includes 20% off for conference-only passes and 10% off training passes.

Alteryx Designer Desktop Discussions

Find answers, ask questions, and share expertise about Alteryx Designer Desktop and Intelligence Suite.

Generate blank row when no data is present

6 - Meteoroid

I am writing a workflow which breaks and sorts a data set into 4 separate parts and then generates a file for each data set. Occasionally, one of the 4 sorted data sets will have no information. I am looking to conditionally generate a blank row of dummy data when this happens. Is that possible?



20 - Arcturus
20 - Arcturus

@BrooksR189 ,


That isn't so straight-forward.  The output that you are looking for is a blank row of dummy data.  Dummy data would likely need to be consistent with the data types of other output values for the fields.  If you union a dummy row (make it 1st), then you can use a multi-row formula and create a NEW field "DELETE" if the DUMMY data is detected and more data is present afterwards.  Then you could filter to keep/drop the dummy data if DELETE result says that more data is present.  Now you can use a SELECT tool to remove the fields.





Alteryx ACE & Top Community Contributor

Chaos reigns within. Repent, reflect and restart. Order shall return.
Please Subscribe to my youTube channel.
17 - Castor
17 - Castor

You can use the Count Records tool like this and append it to your dataset. That ensures that even if there are zero records, one record will be created to overwrite the sheet. The value for your empty columns will be null.


If your columns are numeric, a Data Cleanse tool can be used to change the nulls to zeros.


Hope this helps.


zero records count.png


If you don't want the Count column in your output, can can add a dynamic select tool with formula [Name]!='Count'.


Sample workflow attached.

6 - Meteoroid

Both solutions above worked for me. I went with the count record solution for simplicity.

11 - Bolide
11 - Bolide

The solution above works when there are zero rows, but when i don't have zero rows, I get an error that says -- there were more than 16 records in the source.  

11 - Bolide
11 - Bolide

Just to clarify, the error is in the append fields tool.

8 - Asteroid

The append tool has an option to warn or ignore (if more than 16 appends)

5 - Atom

I also found that the Append Fields tool has a bug where if one input stream has no data that there is no output. I solved this by using the Join Multiple tool instead. That only worked in my case as I am making a 1 row data set can can join by row position.