How do I get last 15 rows from a select query

Hello,
I am writing a query, and I need to filter the last 15 rows of from the select query.
For example: Select id, name,join_date from emp order by join_date;
So I need to get the last 15 rows from emp table so that we can who are the last 15 employees joined the organization. I want to show the result in ascending order, otherwise I would have taken first 15 rows with order by clause as descinding order.
Thanks in advance,
Param.

SQL> select ename, join_date from test222
2 where rownum < 6
3 order by join_date
4 /
ENAME JOIN_DATE
CNC5461177794 14-FEB-02
OR91551178218 14-FEB-02
TUB9894676495 14-FEB-02
SG15431177117 14-FEB-02
PIB9384674017 14-FEB-02
SQL> SELECT * from
2 (select ename, join_date from test222
3 order by join_date desc)
4 WHERE rownum < 6
5 /
ENAME JOIN_DATE
II61111208401 19-MAR-02
II61451208038 18-MAR-02
PI20014184983 01-MAR-02
BNF2221148037C 28-FEB-02
UO78902581 18-FEB-02
Can you see the problem now ?
You can test this concept with your own table.
have a good day,
Sri

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    Should you be in the unfortunate position where you are no longer able to access your original library, or a backup of it, then see Recover your iTunes library from your iPod or iOS device.
    Would you mind telling me which anti-virus package you use? It may be that it is disturbing iTunes when it tries to write out the fresh database, as it does after almost any activity with your library. I'm noticing more of this type of problem than usual and trying to see if there is any pattern. It may help to prevent a repeat of the problem if you look at the advanced options for your AV package and see if you can find a way to exclude the iTunes folder from any real-time scanning process.
    tt2

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