title: How to reference an external file in sql?
body: <p>Probably quite a basic question, but I've had a look around on google, as well as on here, and can't find a great answer.</p>
  
  <p>I am designing a database system to keep track of some date, including a selection of quite large data files. I realise it isn't usually seen as a good thing to include these datafiles in the database itself, but to refer to them somehow. The question is how.</p>
  
  <p>Bearing in mind I am only in the design portion of the project now, and am very new to this. I'm designing it based on SQL, which I have never used before.</p>