pan>”</span>.  In this chapter, we
   consistently use <em class="firstterm">database user</em> to mean <span class="quote">“<span class="quote">role with the
   <code class="literal">LOGIN</code> privilege</span>”</span>.
  </p></div><p>
  <em class="firstterm">Authentication</em> is the process by which the
  database server establishes the identity of the client, and by
  extension determines whether the client application (or the user
  who runs the client application) is permitted to connect with