Du musst den Select anpassen:

C/EXEC SQL
C+ Declare upzeig cursor for
C+ select prkhs, prfir, prdtjj, prdtmm, prdtdd, prart, przah,
C+ prsts, prsa, prtxt, prpro, prwer, prbis, prspe
C+ from preipf
C+ where prkhs = :cmnr and prfir = 3
C+ order by prfir, prart, przah

C+ for update

C/END-EXEC