Difference between real Hijri Date with Oracle Hijri date

Question

Dear ALL,
I will appreciate if any one please let me the solution for this problem. In my application I show the Date in Hijri using the NLS setting. but the issue that "i face a deference between the real hijri date with oracle hijri date"
Assume that the real hijri date on 18-SEP-2012 was 02/11/1433 in hijri but in oracle was 03/11/1433
when I execute the following query it shows me "1433/11/03", but the actual Hijri date is "1433/11/02"
select to_char(to_date('20120918','YYYYMMDD'),'YYYY/MM/DD', 'NLS_calendar='''||'ARABIC hijrah') FROM DUAL;
IFTIKHAR

Answer 1

Hi,
It works correctly for me, too:
SELECT  TO_CHAR ( TO_DATE ('20120918', 'YYYYMMDD')
          , 'YYYY/MM/DD'
          , 'NLS_calendar=''ARABIC hijrah'''
          )      AS h_date
FROM    dual;Output:
H_DATE                                                                         
1433/11/02                                                                      I tried it on Oracle versions
9.2.0.6.0
10.1.0.2.0
10.2.0.3.0
11.1.0.6.0
11.2.0.1.0
and got the same results every time. What version of Oracle are you using? What other software (front end, OS, ...)?
If it's consistently giving you the results for the day after the day wanted, then subtract 1 day before calling TO_CHAR. I know this is not a solution, just a work-around until you find and fix the real problem.