title: How to create and set a variable in azure data factory v2
body: <p>How do I set an variable of type array of strings in ADF v2 so that I can iterate over each element?  Each element represents a database name?</p>
  
  <p>The 'Set Variable' activity has a dropdown but displays 'no results found'?</p>
  
  <p><a href="https://i.stack.imgur.com/q8OqT.png" rel="noreferrer"><img src="https://i.stack.imgur.com/q8OqT.png" alt="screen shot"></a>
  Many thanks,</p>