title: DB2 SQL Error: SQLCODE=-911, SQLSTATE=40001, SQLERRMC=68
body: <p>I am getting this error when I ran:</p>
  
  <pre><code>alter table tablename add column columnname varchar(1) default 'N';
  </code></pre>
  
  <blockquote>
    <p>DB2 SQL Error: SQLCODE=-911, SQLSTATE=40001, SQLERRMC=68</p>
  </blockquote>
  
  <p>How to solve it?</p>