title: Define Database connection for two different datasets using variables in Pentaho
body: <p>I have a requirement of connecting to two different datasets using a variable which compares these datasets. I'm using two different table input steps where the database connection names, hostnames are hard coded. 
  Instead of using hardcoded I want to use a variable which defines these connections and should be able to connect to them<a href="https://i.stack.imgur.com/ZtVcH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZtVcH.png" alt="enter image description here"></a></p>