title: Why do I have to change the uri in Flask for SQLAlchemy?
body: <p>I am trying to develop a web application in Flask, and I have noticed that if I want to use SQLite3 as my database, then I have to input</p>
  
  <pre><code>DATABASE = 'flaskr.json'
  </code></pre>
  
  <p>However, if I want to use SQLAlchemy for my database implementation, I have to use something like</p>
  
  <pre><code>DATABASE = 'sqlite:////Users/jake/repos/flaskralchemy/flaskr.db
  </code></pre>
  
  <p>What is the significance of this change? Also, in all the examples that I have seen, no one creates an actual database on their server. What is going on?</p>
  
  <p>Thanks in advance.</p>