Generate a range of dates using SQL

Question

I have a SQL query that takes a date parameter (if I were to throw it into a function) and I need to run it on every day of the last year.

How to generate a list of the last 365 days, so I can use straight-up SQL to do this?

Obviously generating a list 0..364 would work, too, since I could always:

SELECT SYSDATE - val FROM (...); 

Answer 1

There's no need to use extra large tables or ALL_OBJECTS table:

SELECT TRUNC (SYSDATE - ROWNUM) dt   FROM DUAL CONNECT BY ROWNUM < 366 

will do the trick.