2 Replies Latest reply: Jul 12, 2018 12:09 PM by Youssef Belloum RSS

    Where not Exists()

    Wanyun Yang

      Here's a script I don't quite understand:

       

      LOAD

          .....

          PostalCode as PostCode,

          .....

      Resident Customer

      Where not Exists(PostCode,PostalCode);


      What is the use of Where not Exists(PostCode,PostalCode)?


      Thanks for help!