title: BigQuery Service Accounts config for more than one project
body: <p>While using BigQuery Java Client, need to join between Table A present in project A.dataset A and Table B present in project B.dataset B</p>
  
  <p>I am able to run the query using BigQuery console and get cross-project access to the tables by specifying the complete table id i.e. project.dataset.table</p>
  
  <p>Is it possible to add both projects A and B to the same service account, so that the client can be initialized with a single Google Service Account Configuration and query the tables from both the projects?</p>
  
  <p>Thanks.</p>