title: Is it possible to create relationships between tables?
body: <p>Bigquery seems great, I have a database type ETL, where my scheme has several relationships between entities, I would like to know if there is a way to make relations between them, or if they can be simulated in some way between the datasets?</p>
  
  <p>Forgive my English, it's not my language and I do not know it very well.</p>