title: Finding a mapping using Repository manager query tool
body: <p>I know a particular source definition name. Now I need to know the list of mapping names in which that source definition is used. How can I query this?</p>
  
  <p>Example:<br>
  There are 100 mappings in a folder. 4 mappings using the source ABC, I need to find out that 4 mapping names.</p>