code: public int deleteByIdCascade(String id, boolean userTable)
  			throws SQLException {
  		int count = 0;
  		if (id != null) {
  			Contents contents = queryForId(id);
  			if (contents != null) {
  				count = deleteCascade(contents, userTable);
  			} else if (userTable) {
  				dropTable(id);
  			}
  		}
  		return count;
  	}
docs: Delete a Contents by id, cascading optionally including the user table
  
  @param id
  id
  @param userTable
  true if a user table
  @return deleted count
  @throws SQLException
  upon deletion error