Julian Date error in SQL statement - but it has no Julian date

From: Tony van Lingen <tony.vanlingen_at_epa.qld.gov.au>
Date: Thu, 11 Jan 2007 13:06:51 +1000
Message-ID: <45A5A9CB.7080602@epa.qld.gov.au>

G'day,

I've just been alerted to a strange problem with a sql script that's been in use for years here. It contains the following statement:

SQL> l

  1  select to_char(hrs_start,'DD/MM, Day')                     day,
  2         round(Sum(nvl(hrs_end,sysdate)-hrs_start)*24,2)     hours
  3  FROM ACTIVITIES a,
  4       hours h,
  5       activity_persons p,
  6       personnel per
  7  WHERE a.JOB_ID = p.ACT_JOB_ID
  8    AND a.ID = p.ACT_ID
  9    AND h.ACT_ID = a.ID
 10    AND h.ACT_JOB_ID = a.JOB_ID

 11 AND h.PRS_CODE = p.PRS_CODE
 12 AND h.hrs_start >= to_date (nvl(:startdate, '1-1-1900') , 'DD-MM-YYYY' )
 13 AND h.hrs_end <= nvl(to_date( :enddate, 'DD-MM-YYYY' ), sysdate)  14 AND ((per.ORAUSER=user) AND (p.PRS_CODE=per.code))  15 GROUP BY to_char(hrs_start,'DD/MM, Day')  16* ORDER BY to_date ( to_char(hrs_start,'DD/MM, Day'), 'DD/MM, Day' )

It produces a nice sorted list of the hours worked on the various days in the given period (between :startdate and :enddate). The strange ORDER BY clause is necessary because of the GROUP BY on to_char(..). It's always worked nicely, for current dates as well as for previous years. This is the expected output:

SQL> exec :startdate := '1-1-2007';
SQL> exec :enddate := '31-1-2007';
SQL> /

DAY                   HOURS
---------------- ----------
02/01, Tuesday         9.53
03/01, Wednesday        9.9
04/01, Thursday        7.97
05/01, Friday          8.52
08/01, Monday          8.42
09/01, Tuesday         8.52
10/01, Wednesday       8.95
11/01, Thursday         .57

In the past year we migrated from 9.2x to 10.1.0.4 and the following errors now show up when we try and produce a list for any previous year:

SQL> exec :startdate := '1-12-2006';
SQL> /
GROUP BY to_char(hrs_start,'DD/MM, Day')

*

ERROR at line 15:
ORA-01835: day of week conflicts with Julian date

SQL> exec :enddate := '31-12-2006' ;
SQL> /
GROUP BY to_char(hrs_start,'DD/MM, Day')

*

ERROR at line 15:
ORA-01835: day of week conflicts with Julian date

And julian dates aren't even asked for! Has anyone seen this before? (Oracle DB 10.1.0.4.0 on Solaris, SQLPlus 10.1.0.4.0 on Windows & Linux)

-- 
Tony van Lingen



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Received on Wed Jan 10 2007 - 21:06:51 CST