title: How to change the Oracle default timestamp format
body: <p>Using alter session only set <strong>NLS_TIMESTAMP_FORMAT</strong> or <strong>NLS_TIMESTAMP_TZ_FORMAT</strong> for the current session. </p>
  
  <p>It does not change the default database properties.</p>
  
  <p>The Oracle 10g's locale installed on my machine is set to Chinese. And the timestamp format is Chinese specific.</p>
  
  <p>I need to use the US format (YYYY-MM-DD HH:MI:SS).</p>
  
  <p>Any solution?</p>