Can't restore backup, I don'find the right format to use for date with RMAN

Question

Hi I would like to restore my database to a point in time but I can't because I am not able to find the NLS_DATE_FORMAT to use.
I don't know how to alter the session parameters at the RMAN prompt
I would like to restore to this time set until time 'May 10 2006 08:48:10';
Can't some one just tell me how to use thise settings? Please it is urgent

Answer 1

I am on Debian
SQL> show parameter NLS_DATE_FORMAT;
NAME TYPE VALUE
nls_date_format string
SQL> select sysdate from dual;
SYSDATE
10-MAY-06
RMAN> sql "alter session set nls_date_format = 'DD-MON-YYYY HH24:MI:SS'";
using target database control file instead of recovery catalog
sql statement: alter session set nls_date_format = 'DD-MON-YYYY HH24:MI:SS'
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of sql command on default channel at 05/10/2006 10:21:44
RMAN-10015: error compiling PL/SQL program
RMAN-10014: PL/SQL error 103 on line 4 column 57: Encountered the symbol "HH24" when expecting one of the following:
. ( ) , * @ % & | = - + < / > at in is mod remainder not rem
=> .. <an exponent (**)> <> or != or ~= >= <= <> and or like
LIKE2_ LIKE4_ LIKEC_ between || member SUBMULTISET_
For sure I am stupid but why is it so difficult to just set the time