Can we configure Oracle 10g xe so that it accept date in yyyy-mm--dd format

Question

I am facing problem in inserting and updating data in oracle server through jdbc. its java.sql.Date class sends date in yyyy-mm-dd format while oracle requires date in dd-mmm-yy format. can we configure oracle server in such a way that we may send date in yyyy-mm-dd format to insert and update?

Answer 1

People should be sure of their information before
posting, even more so if they have an Oracle Ace
credential,as they're more likely to be believed. Not sure what you are saying.
The way I read it, Avi stated that overriding the NLS_DATE_FORMAT as an initialization parameter WILL NOT affect the way XE works, and you still need to set the parameter at the session level.
This is true.
As demonstrated here, where I
- startup my XE (SuSE 10.1 Pro/Linux),
- show the NLS setting,
- log on to a regular user, -
- show the system date,
- change the NLS_DATE_FORMAT system wide by updating my PFILE,
- restart the database
- show the NLS_DATE_FORMAT
- extract the system date.
As you see from the console session, the date still comes out in the format defined by the NLS_TERRITORY, in spite of what the global NLS_DATE_FORMAT indicates.
fcc@fuzzy:~> su - oracle
Password:
oracle@fuzzy:~> sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jul 6 08:06:05 2007
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area  448790528 bytes
Fixed Size                  1259400 bytes
Variable Size             134219896 bytes
Database Buffers          310378496 bytes
Redo Buffers                2932736 bytes
Database mounted.
show parameter nls_date
Database opened.
SQL>
NAME                                 TYPE        VALUE
nls_date_format                      string
nls_date_language                    string
SQL> connect test/test
Connected.
SQL> select sysdate from dual;
SYSDATE
06-JUL-07
SQL> alter session set nls_date_format='YYYY Mon DD';
Session altered.
SQL> select sysdate from dual;
SYSDATE
2007 Jul 06
SQL> connect / as sysdba
Connected.
SQL> select sysdate from dual;
SYSDATE
06-JUL-07
SQL> create pfile='/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/xe.pfile' from spfile;
File created.
SQL> !vi /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/xe.pfile
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup pfile=/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/xe.pfile
ORACLE instance started.
Total System Global Area  448790528 bytes
Fixed Size                  1259400 bytes
Variable Size             134219896 bytes
Database Buffers          310378496 bytes
Redo Buffers                2932736 bytes
Database mounted.
Database opened.
SQL> connect test/test
Connected.
SQL> connect / as sysdba
Connected.
SQL> show parameter nls_date
NAME                                 TYPE        VALUE
nls_date_format                      string      YYYY Mon DD
nls_date_language                    string
SQL> connect test/test
Connected.
SQL> select sysdate from dual;
SYSDATE
06-JUL-07
SQL>