def METHOD_NAME():
    backup_db_connection = get_backupdb_connection()
    cursor = backup_db_connection.cursor()
    # select the last timestamp from the datafilestatus table: 
    dataverse_query="SELECT createdate FROM datafilestatus ORDER BY createdate DESC LIMIT 1"
    cursor.execute(dataverse_query)
    record = cursor.fetchone()
    if record is None:
        #print "table is empty"
        return None
    #timestamp = record[0] + timedelta(seconds=1)
    timestamp = record[0]
    # milliseconds are important!
    timestamp_str = timestamp.strftime('%Y-%m-%d %H:%M:%S.%f')
    return timestamp_str