How to get no of days using oracle date function

Dear all,
i need different output from this query mentioned below.
suppose i have execute this query.
sql> select add_month(SYSDATE, -1 * 6) finaldate from dual;
it will give the output as
sql>FINALDATE
05-JUL-2009 13:46
now i need to get the total no days from the same query that means it should calculate the total no of days from july to current date and give the output.
if you can give any hint.
Regards
Laxman

Oracle supports date arithmetic and uses day as a unit.For example, number of days from July 1, 2009 to SYSDATE
SQL> SELECT SYSDATE - DATE '2009-07-01'
2 FROM DUAL
3 /
SYSDATE-DATE'2009-07-01'
188.386968
SQL> SY.

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How to get no of days using oracle date function

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