title: Cannot drop table users because other objects depend on it
body: <p>I want to drop my tables in my database.
  But, when I use, for example,
  <code>DROP TABLE if exists users;</code>
  I receive this message:</p>
  <blockquote>
  <p><code>cannot drop table users because other objects depend on it</code></p>
  </blockquote>
  <p>I found the solution is to drop all tables. But, anyway, how to solve this problem without total data removal?</p>