3 Replies Latest reply on Aug 2, 2016 6:01 AM by Tom W

    How to use only empty data

    Tarsila Mendonça



      I am doing an analysis with a dabatase sales in stores but I wanted to show in the graph only the stores that DID NOT SELL the product.

      I have already used the option to show empty columns but this do not exclude the stores that I sold.


      Thanks in advance.

        • 1. Re: How to use only empty data
          Tom W

          You will most likely need to change your source data or use blending to generate a master list of products, then join the customers / sales to that.


          What type of data source are you pulling from?

          • 2. Re: How to use only empty data
            Tarsila Mendonça

            My concern to do this option is the size of the database, that is already too heavy. We use SQL Server.

            Thank you for your help.

            • 3. Re: How to use only empty data
              Tom W

              The problem with using the 'show empty columns' approach is that all of your products need to be contained within the data in your Tableau report. As soon as you look to exclude the products which have been sold, you're going to lose the ability to see those products for the customers who haven't purchased them and the entire show empty columns thing won't work.


              This is a pretty straight forward query to write in the database. I'd push this to the database and render it in Tableau. I'm not sure there are any tricks in Tableau which will make this easier to process versus the database itself.