Call function with select arguments

Question

Hi Gurus,
I have problem to call function inside select statements as follow:
select a.ID_ELE2, a.ID_ELE3, a.DT_FIS_YR, c.NU_FIS_PER, c.dt,
(case
when c.ld is null then
GET_LD_CHECK (a.DT_FIS_YR,c.NU_FIS_PER, a.ID_ELE3, a.ID_ELE2) -- 1
-- GET_LD_CHECK ('2009',7, '8010', '7493') --- 2
else
c.ld
end ) description
from ACCOUNT a, TRANSACTION c
where a.DT_FIS_YR ='2009'
and a.ID_ELE3 <> '0000'
and c.TY_SRC not in ('CL', 'CN')
and a.DT_FIS_YR = c.nu_fis_yr
and a.AK = c.AK_FGCHAR
and trim(a.ID_ELE3) ='8010'
and c.NU_FIS_PER <> 14
order by 1,4,5,6
the 1 doesn't output result but the 2 it does! How can pass the select result to the function?
Thanks in advance for your help.
Ben

Answer 1

The statement / function call seems to be ok. So there are not much chances left for your call to return different (=non) values.
1) It could be that you have different values in the column then during your test call.
2) Maybe your function raises an error and that error is supressed in some ugly WHEN OTHERS EXCEPTION => Solution: Get rid of the error handler.
3) datatype conversion. For example if a.dt_fis_yr is a number value, then you should test with number values and not with strings. GET_LD_CHECK (2009,7, '8010', '7493'). Same logic goes for the other paramters, make sure the datatype is correct and matches the function parameter.