title: Arrays in MySQL?
body: <p>I have a database that's formatted like this:</p>
  
  <pre><code>URLID   USERNAME   URL
  0       jake       abc.com
  1       jake       123.com
  2       po         google.com
  3       po         googl3.com
  4       po         ranoutoffakeurlslol.com
  </code></pre>
  
  <p>However, I want it to be something like this:</p>
  
  <pre><code>USERNAME    URLS
  jake        {abc.com, 123.com}
  po          {google.com, googl3.com, ranoutoffakeurlslol.com}
  </code></pre>
  
  <p>How would I do it? If it's not possible, then, how can I make method 1 more efficient?
  Thanks in advance!</p>