Setting nls_date_format....in oracle 9i v 9.2

Question

Setting nls_date_formate is working in session level fine.
But i need to set the format in an application level.For that i tried the following,but date format is not changed.
i created the Pfile from SPfile,made an entry nls_date_format='DD/MM/YYYY'. and then i created SPfile from Pfile.but date format is not changed.

Answer 1

Hi,
If the client environment sets any of the NLS_* parameters, they override the server in all cases. So if the client sets, for example, the NLS_LANG parameter, that will cause all NLS_* settings on the server to be ignored. The server will use the client's specified values and default values for all other NLS settings instead, ignoring anything in init.ora.
Where that typically comes into play is if the client is Windows. The client install on Windows sets the NLS_LANG parameter in the registry by default. The fact that the client sets the NLS_LANG parameter causes the NLS settings you put in the init.ora not to be used by that client. To solve this, you can
* Set the NLS_DATE_FORMAT in the registry on the client
* Put an ALTER SESSION SET nls_date_format=your_format statement in your application right after the connect
* Use an AFTER LOGON trigger similar to the one supplied below:
create or replace trigger
data_logon_trigger
after logon
on database
begin
execute immediate 'alter session set nls_date_format = ''your format here'' ';
end;
/Cheers