input: Write a function to determine if it is possible to create a HTML page that displays a table of contents from the data stored in a database. If it is possible return True else return False. If the database query returns an empty result, then return False.
  assert display_table_of_contents_from_db()==True
  assert display_table_of_contents_from_db('empty_database')==False
output: def display_table_of_contents_from_db(database=None):
      if database == 'empty_database':
          return False
      return True