Recommended PTF's for Dynamic Sql in RPG?

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Were running r4.5 with just latest cumulative tape..

But for somereason, I can't get a dynamic sql statement to work, it just
seems to hang on the fetch command...

It's a simple Join, with one field, and the where clause is looking for a
match using an item code on table a , and a department code on table B.

This works fine from the command link, and also as a declared statement with
the fields hardcoded..

This is the declared version that did work...

c*exec sql
c* declare  c1 cursor for
c*      select *
c*
c*      from (prdjrnusg a join jpldcusgsm b on
c*              a.pjstr# = b.jpstr#)
c*
c*      where (a.pjhdat between 37110 and 37115) and
c*      a.pjprod in ('1804','1310','2153') and
c*      b.rddid = 'LAB'
c*end-exec

And this is the one that doesn't... I took out all the variables, to test
this...

And it's very likely (probable) that the reason it's not working, is because
I might have a coding error, so I'm including most of the relavant parts..

Dprdjrnusg      E DS                  extname(PRDJRNUSG) inz
d                                     prefix(a_)
Djpldcusgsm     E DS                  extname(jpldcusgsm)  inz
d                                     prefix(b_)

d sql             s           1000    varying

c/exec sql
c+ declare  c1 cursor for DynSqlStmt
c/end-exec

c                  eval      sql=
c                            'Select * ' +
c                            'From (prdjrnusg  a  JOIN '+
c                                  'jpldcusgsm b  '+
c                                  'ON a.pjstr# = b.jpstr#) '+
c                            'WHERE (a.pjhdat between 37110'+
c                            ' AND 37115) ' +
c                            'and a.pjprod in '  +
c                            '(''1804'',''1310'',''2153'')' +
c                            ' and b.rddid = ''LAB'' '
c/exec sql
c+ Prepare DynSqlStmt from :sql
c/end-exec

c/EXEC SQL   OPEN C1
c/end-exec

c                   dou       Done
c/EXEC SQL
c+ FETCH next from c1 INTO :prdjrnusg, :jpldcusgsm
c/END-EXEC

c                   if        sqlcod <> 0
c                   leave
c                   endif



Below was the orginal non hardcoded version...
c*                  eval      sql=
c*                            'Select * ' +
c*                            'From (PrdJrnUsg  a  JOIN '+
c*                                  'JPLDCusgsm b  '+
c*                                  'ON a.pjstr# = b.jpstr#) '+

c*                            'WHERE (a.pjhdat between '+
c*                                       %editc(startdateh:'Z') +
c*                            ' AND ' +
c*                                    %editc(EndDateH:'Z') + ') '+

c*                  if        %trim(dspwhere) <> *blanks
c*                  eval      sql = sql + 'AND '+%trim(dspwhere)
c*                  endif

Thanks, tim