Re: OPNQRYF question

["Peter Dow" <pcdow@xxxxxxxxx>]

Hi Booth,

The key field has to be a field in the file specified in the FORMAT
parameter. This may require a dummy physical file to be used as your FORMAT
file. The help text for the key field parameter of opnqryf states:

"All key fields for an open query file must appear in the query records
processed through the file.  The fields named in the record format
identified on the Format specifications prompt (FORMAT parameter) must
include all key fields for the open query file, even if *FILE is specified
to use the existing access path of a keyed file."

HTH
Peter Dow
Dow Software Services, Inc.
909 425-0194 voice
909 425-0196 fax


----- Original Message -----
From: <boothm@earth.Goddard.edu>
To: <rpg400-l@midrange.com>
Sent: Sunday, March 05, 2000 6:53 PM
Subject: OPNQRYF question


> I need to select and sort a group of records from a 200,000 record file.
> OPNQRYF seems the right tool, but performance is horrid plus there's one
> step that I can't figure out.
>
> The finished file has to be in order by substringing Column 3 through 27
> of FIELDB.  The Physical file is already keyed by FIELDB.   For sorting I
> tried KEYFIELD(*MAPFLD/FIELDBNBR) MAPFLD(FIELDBNBR '%SST(FIELDB 3 25)' )
> but that wouldn't compile.
>
> Any suggestions?
> _______________________
> Booth Martin
> boothm@earth.goddard.edu
> http://www.spy.net/~booth
> _______________________
>
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