title: Cannot connect to new user just created on oracle on docker (ORA-01017)
body: <p>I'm trying to use Oracle 12c on Ubuntu 18 to study for my work.</p>
  
  <p>For it, I'm using docker-compose file I used to create in other PCs.</p>
  
  <pre><code>version: '2'
  services:
   database:
     image: store/oracle/database-enterprise:12.2.0.1
     volumes:
       - ./data:/ORCL # persistent oracle database data.
     ports:
       - 1529:1521
       - 8082:8080
       - 5500:5500
  </code></pre>
  
  <p>After install, I can login as sysadmin and I enter those codes below to create a user.</p>
  
  <pre class="lang-sql prettyprint-override"><code>ALTER SESSION SET CONTAINER = ORCLPDB1;
  CREATE USER BUS IDENTIFIED BY DEMO_PASS;
  GRANT CONNECT TO BUS;
  </code></pre>
  
  <p>and then, I try to connect to it.</p>
  
  <pre><code>sqlplus BUS/DEMO_PASS@localhost:1529/ORCLCDB.localdomain
  </code></pre>
  
  <p>I want to login as could in other PCs but instead of this, I'm getting this error.</p>
  
  <pre><code>ORA-01017: invalid username/password; logon denied
  </code></pre>