General rule of thumb: If you are doing it using OPNQRYF you should be
using imbedded SQL instead.

Here's a generic V5R3 compatible version:

H ActGrp(*CALLER)
H DftActGrp(*NO)

D OpenCursor PR n
D FetchCursor PR n
D CloseCursor PR n

D MyLib s 10a
D MyFile s 10a

/free
*inlr=*on;
if not OpenCursor();
// perform error routine to alert the troops
// ...
Else;
Dow FetchCursor();
// putting the fetchcursor on the do loop allows the user of
// iter, and thus iter will not perform an infinite loop
// normal processing here...
EndDo;
CloseCursor();
EndIf;
return;
/end-free

P OpenCursor B
D OpenCursor PI like(ReturnVar)
D ReturnVar s n

C/EXEC SQL
C+ Set Option
C+ Naming = *Sys,
C+ Commit = *None,
C+ UsrPrf = *User,
C+ DynUsrPrf = *User,
C+ Datfmt = *iso,
C+ CloSqlCsr = *EndMod
C/END-EXEC

C/EXEC SQL
C+ Declare C1 cursor for
C+ Select System_Table_Schema as library,
C+ System_Table_Name as file
C+ from qsys2/systables
C/END-EXEC

C/EXEC SQL
C+ Open C1
C/END-EXEC

/free
Select;
When SqlStt='00000';
return *on;
Other;
return *off;
EndSl;
/end-free
P OpenCursor E

/eject
P FetchCursor B
D FetchCursor PI like(ReturnVar)
D ReturnVar s n
C/EXEC SQL
C+ Fetch C1 into :MyLib, :MyFile
C/END-EXEC
/free
Select;
When sqlstt='00000';
// row was received, normal
ReturnVar=*on;
When sqlstt='02000';
// same as %eof, sooner or later this is normal
ReturnVar=*off;
Other;
// alert the troops!
ReturnVar=*off;
EndSl;
return ReturnVar;
/end-free
P FetchCursor E

/eject
P CloseCursor B
D CloseCursor PI like(ReturnVar)
D ReturnVar s n
C/EXEC SQL
C+ Close C1
C/END-EXEC
/free
Select;
When sqlstt='00000';
// cursor was closed, normal
ReturnVar=*on;
Other;
// alert the troops!
ReturnVar=*off;
EndSl;
return ReturnVar;
/end-free
P CloseCursor E



Rob Berendt

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