Thanks Matt. I've learned a lot from your article. And in this tutorial, I also want to share a little tip: This is my configuration of ExecuteGroovyScript, and I used the '${${tablename}}' to get the variable's PropertyValue. In the incoming flowfile,there is no 'tablename' attribute. This is my groovy script: the 'tablename' is also a variable, and I put it into the flowfile's attributes in the script ... View more