用SQL如何实现？

用SQL怎么实现？？
oracle   中   根据数字2006   4   用一句SQL怎么实现输出下列结果

1   2006001
2   2006002
3   2006003
4   2006004

[解决办法]
SELECT LEVEL, 200600 || LEVEL AS "DATE "
FROM DUAL
CONNECT BY LEVEL < 5
/