Identical code works/does not work in different forms

Question

This piece of code works fine in one form but not in another : OVTtunnus1.rawValue = "0037" + Ytunnus1.rawValue.replace(/-/g, "");
If I comment it, no error. So, there is no other factors to produce the error.
Error :
Ytunnus1.rawValue is null
1:XFA:form1[0]:Aliyritys[0]:OVTtunnus1[0]:enterException in line 1 of function top_level, script XFA:form1[0]:Aliyritys[0]:OVTtunnus1[0]:enter
Erkki

Answer 1

The PL/SQL of Forms/Reports is based on old version SQL,
does not support subquery in select-clause.
Let it transform to outer join.
select em1.mreading, em1.grid_code
,em.mreading as Yreading
where em.grid_code(+)=em1.grid_code
and em.transformer_code(+)=em1.transformer_code
and em.bus_bar(+)=em1.bus_bar
and to_date(to_char(em.r_date(+),'dd/mm/yyyy'),'dd/mm/yy') = to_date('02/01/07' ,'dd/mm/yy') - 1)
and to_date(to_char(em1.r_date,'dd/mm/yyyy'),'dd/mm/yy')= to_date('02/01/07' ,'dd/mm/yy')
;