2 Replies Latest reply on Apr 4, 2018 6:40 PM by Shang Wang

    How to set an extract filter on multiple connections

    Shang Wang

      I currently connect tableau with two different Oracle database, and manage to join two tables from those two DB together to do visualization.


      Because the data size is more than 20M, I want to use extract filter to reduce the total data size and enhance tableau performance.


      if when I just drag one table into Tableau, I can successfully set an extract filter, because when Tableau create the extract, I can see the number of row is obviously reduced. However, if I drag another table into Tableau and join it with previous one, the extract filter seemingly doesn't work, because Tableau looks like loading all data again. I am not sure where is wrong. Does anybody know about it and help me? Thanks a lot!