2 Replies Latest reply on Mar 28, 2013 3:16 AM by Tamas Foldi

    Data extract

    Hema sekar

      Hello,

         I have a data source which does not hold one single column as a unique key. I would like to schedule incremental refresh on this data extract .

      Can this be done?

      My second question is if there is a unique key, is that always tableau will refresh the extract if the record is holding a new value(database) in comparison with data what it holds in data engine?

       

      Thanks

      Hema