title: Are there multiline comment delimiters in SQL that are vendor-agnostic?
body: <p>While editing, building up, or cherry picking from SQL statements I can find myself interacting with one of four popular database tools.</p>
  <p>I have been resorting to single line commenting for <a href="https://en.wikipedia.org/wiki/IBM_DB2" rel="nofollow noreferrer">DB2</a> and <a href="https://en.wikipedia.org/wiki/IBM_Informix" rel="nofollow noreferrer">Informix</a>.  I have created macros in <a href="https://en.wikipedia.org/wiki/Vim_%28text_editor%29" rel="nofollow noreferrer">Vim</a> to make this slightly more efficient, but I was wondering if I am working too hard.</p>