title: Why can't I create a database in MongoDB
body: <p>I can't seem to create a mongoDB database. I've read like 4 tutorials, and it seems like it should be pretty straight forward. Did I miss anything? Could I have a problem with my installation or something?</p>
  
  <pre><code>&gt; use a
  switched to db a
  &gt; a.abc.save({abc:"asdf"})
  2015-04-17T01:39:45.723-0400 E QUERY    ReferenceError: a is not defined
  at (shell):1:1
  &gt; a.abc.insert({abc:"asdf"})
  2015-04-17T01:39:58.572-0400 E QUERY    ReferenceError: a is not defined
  at (shell):1:1
  </code></pre>