JDE Jul date to ISO Format

Hi Experts,

Im digging in some java code and I found the following part in the Select part of a SQL definition see attached code,  just to get a jul-date from JDE into a ISO date format (YYYYMMDD).
and this is used for each of the date fields in the SQL def.

Is there no other solution then this garbage?
something maintainable?
a standard function?
a own written function?
an Include file? whatever

my java knowledege is verry low so please help me with an example.


case when (a.JDAT IS NULL " +                                
or a.JDAT < 1011) then '0' ELSE " +                          
(to_char(to_date(to_char((1900 +  " +                          
(100 * TO_Number(substr(to_char(a.JDAT),1,1)))) " +          
+ substr(to_char(a.JDAT),2,2)) || '-01-01', 'yyyy-mm-dd') " +
+ (substr(a.JDAT,4,3) - 1), 'yyyymmdd')) END JDAT, " +

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MurpheyApplication ConsultantAsked:
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You'll have to forgive me - i don't know what 'JDE' is, nor 'Jul'. What datatype are you starting with?
MurpheyApplication ConsultantAuthor Commented:

JDE = JD Edwards a (Software package) MRP, sales etc.

Jul = Julian date format = year/daynumber
normally it's yyddd, but JDE thinks to be clever and uses cyyddd, so standard Jul2date routines don't work


>>What datatype are you starting with?
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MurpheyApplication ConsultantAuthor Commented:
Data type is uhhh Character
Try the following. You can get 'fromJulian' here:

	int jul = 2436660; (Julian date)
	int[] atoms = fromJulian(jul);
	Calendar cal = new GregorianCalendar(atoms[0], --atoms[1], atoms[2]);
	String iso = new java.sql.Date(cal.getTimeInMillis()).toString();

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MurpheyApplication ConsultantAuthor Commented:
Found the answer :-S


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MurpheyApplication ConsultantAuthor Commented:

I can't include your solution in a SQL string... and... its using the standard Julian date, not the stupid JDE one.
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