Forms 10g - Oracle 11g DB - Date Format Error - Urgent

Question

Hi All,
We are migrating forms 6i to forms 10g.Data Base is 9i to 11g Migration.
In 10g forms pre-form trigger ,i have statement
:head.yr_st_dt := to_date(sc.get_property('ps.yr_st_dt'),'MON DD YYYY HH:MI:SSPM');
In 6i ,it is working fine,the :head.yr_st_dt=22-SEP-09.
In 1og forms with 11g Database, I am getting the below error
frm-40735:PRE-FORM trigger raised unhandled exception ORA-01843
It seems invalid month.
In 9i ,the NLS_DATE_FORMAT is DD-MON-RR.In 11g also same.
Thanks in Advance,
Regards,
Shan

Answer 1

user642745: In the list of forum topics, the fourth topic down is this:
    Before posting on this forum please read.   Within that post there is a recommendation:   "Also read the 10 Commandments on OTN forum posting." with this link:   http://blogs.oracle.com/shay/2007/03/02
Please read and follow step 6, "Get a name".
You now have 101 posts to your "user642745" name. When you write, it is difficult to distinguish between your post and the original poster's since you both have a similar number as your names.
user648338: It is clear you do not understand how Oracle handles dates. Depending on the NLS_DATE_FORMAT and NLS_LANG for the session you are running, you will get different results when you display your sc.get_property('ps.yr_st_dt') output.
The fact that you are even trying to execute the command:
select to_date('01-MAY-09','MON DD YYYY HH:MI:SSPM') from dual;shows that you do not understand standard date processing.
Internally, Oracle stores ALL dates in a 7-byte format that includes both date AND time.
The fact that you are getting results like 01-MAY-09 just means that your session is running with NLS_DATE_FORMAT set to DD-MON-YY. It does NOT mean that the date is stored that way.
Your entire problem is caused by the fact that the system on which your old Oracle 9i -- Forms 6i environment has its NLS_DATE_FORMAT (and possibly NLS_LANG) set differently than on your Oracle 11g -- Forms 10g environment.
If you can set your new environment the same as the old, your trouble will go away. Here is how you determine what the values of those environment variables are. Run this in SQL Plus:
select * from nls_session_parameters
  where parameter in('NLS_LANGUAGE','NLS_TERRITORY',
                     'NLS_DATE_FORMAT','NLS_DATE_LANGUAGE');Be aware, though, that it is possible for your Forms environment to change the settings only for the Forms sessions, so what you get from SQL Plus may not be the same.
Edited by: Steve Cosner on Sep 23, 2008 11:13 AM