• Subject: Re: CLEAR Opcode?
  • From: Dave Mahadevan <mahadevan@xxxxxxxx>
  • Date: Thu, 13 Nov 1997 12:05:23 -0500
  • Organization: Stoner and Associates



John Carr wrote:

> RE:     CLEAR Opcode?
>
> >I have a program in which I am using a file as Input/Full procedural, I
> >am only using one of the files fields as output within the RLU generated
> >PRTF in my program.  When I do the following:
> >               CLEAR TMISC     <---- Record format name.
> >       K10     CHAIN FLTMISC           30
> >If my chain is a no hit, this field from the record format above isn't
> >cleared out.  But if I do this:
> >               CLEAR TMDES6    <---- Individual field within record format.
> >       K10     CHAIN FLTMISC           30
> >It is cleared out properly.. What gives?
> > -Tim & Dana Truax-:
>
> Tim
>
> It doesn't work if your file is Input only.  Only if its Update.
> To get around this,  Have an externally defined D/S (Using that file
> as the defining file),   and then do a CLEAR on the D/S name.
> This will have the same effect.   I can't justify why it doesn't
> work for Input Only.
>
> P.S. It would work for your Printer File Format Name though.

You can use *ALL in factor 2 of the CLEAR Op code to clear all fields.

Somthing like
CLEAR  *ALL   RECFMT

This works for input only, output only or i/o files.  Also, if you specify 
*NOKEY
in factor 1, it will leave the key fields alone. There is a blurb in the manual
that says you cant use *ALL under certain  i/o conditions with certain i/o
fields.  ignore it.  It clears the fields.  Now  IBM, do not go messing around 
to
make the code work like the manual.

--
Thank You.

Regards

Dave Mahadevan.. mailto:mahadevan@fuse.net


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