selecting n number of rows from 2 tables

I need to write a query that will return the last 15 rows from a 2 table join once certain criteria is met. The query is as follows:

select col1,col2,col3
from table1 a, table2 b
where b.col1=a.col1
and trunc(col3) <= (date)
and col2 in ('text values')

is there a simple way to get the last 15 rows of this query?

I am using SQL*PLUS 8.1.6 on a 7.2.3 DB, users may be using SQL*PLUS 3.3

thanks!

The term "the last 15 rows" is irrelevent without a sort order. Once you figure out your order, you can sort in decending order and pick the first 15 rows.

so I put in a sort by the date field desc, then what? rownum < 16 where clause before the order by?

Just for a hint, consider the following:

SELECT
---OUTER.C1
FROM
---(
------SELECT
---------INNER.C1,
---------ROWNUM
------------AS QUERY_ROWNUM
------FROM
---------(
---------SELECT
------------C1
---------FROM
------------TABLE1
---------ORDER BY
------------C1
---------) INNER
------WHERE
---------ROWNUM (LESS THAN) 8
---) OUTER
WHERE
---OUTER.QUERY_ROWNUM >= 4

---- quoted from former topic

Thanks