input: 
  def select_approved_rows():
      """ Execute the SQL query to select all rows from a table where the 'status' is 'approved'
      and return the results.
      >>> # Assume 'cur' is a cursor object connected to a database
      >>> cur.fetchall()  # This would return all rows with status 'approved'
      """
      sql = "SELECT * FROM table WHERE status = 'approved'"
      cur.execute(sql)
      return cur.fetchall()
  
output:     sql = "SELECT * FROM table WHERE status = 'approved'"
      cur.execute(sql)
      return cur.fetchall()