Is there any recursive function in DB2

Question

Hi all,
Could you please tell me is there any recursive function in DB2 and if yes then please provide me a sample code.
I want to write a function as below but it's giving me following error:
>[Error] Script lines: 1-33 -
( DB2 SQL error: SQLCODE: -440, SQLSTATE: 42884, SQLERRMC: SCF_MC2;FUNCTION
Message: No authorized routine named "SCF_MC2" of type "FUNCTION" having compatible arguments was found.
Line: 11 )
create FUNCTION scf_mc2 (@@certname varCHAR(20),@@assignee varCHAR(20),@@currentUser     varCHAR(20), @@javaLocale
varCHAR(20) )RETURNS float
LANGUAGE SQL
READS SQL
DATA format:
BEGIN ATOMIC 
    declare @n_cost float;
    declare @n_cost1 float;
    set @n_cost1 =0.00;
FOR @n_cost as
    select
    COALESCE ((CASE substr(ep.part_id,1,5) when 'cours' then tp2.scf_nc(ep.part_id,@@assignee,@@currentUser,@@javaLocale)  else
    tp2.scf_mc2(ep.part_id,@@assignee,@@currentUser,@@javaLocale) end ),0) cost
    from
    tpt_ext_ce_certification certi
    inner join tpt_ext_ce_track tr  on tr.certification_id = certi.id
    inner join tpt_ext_ce_group gr  ON gr.track_id = tr.id
    inner join tpt_ce_education_plan ep  ON ep.owner_id = gr.id
    WHERE
    tr.locale_id = @@javaLocale
    AND
    gr.locale_id = @@javaLocale
    AND
    certi.locale_id = @@javaLocale
    and
    substr(tr.flags,2,1) = '1'
    and
    certi.id=@@certname
DO
SET @n_cost1 = @n_cost+@n_cost1;
END FOR;
return @n_cost1;
end format
Regards
Vishal

Answer 1

Java is an object-oriented language, so you're not just searching for a method to do what you want, but for a Class, that provides that ability.
And since you don't define what "the date that I want" means I can only guess.
If you've got the date value in a String in some format, then you might look into the DateFormat or SimpleDateFormat classes.