Re: Updating Records

[Tony Carolla <carolla@xxxxxxxxx>]

Blast it!  ignore my previous msg --  use this one:
Declare it for update, with additions, i.e:

    FFilename  UF A E           K Disk

This way, you can read and/or write.  The other way would be to
declare the same file twice, with different names:

    FFilename  IF   E           K Disk
    FFile2     O    E           K Disk    ExtFile('LIB/FILENAME')
    F                                     Rename(FmtName:FmtName2)

This way, you can use Filename to input, and File2 to output to.  The
system should use blocking this way, so it might be faster.  When
compiling this second method, you must override the FILE2 entry to
point at FILENAME, ie.

OVRDBF FILE2 TOFILE(LIB/FILENAME)

Hope this helps


On Wed, 17 Nov 2004 19:47:23 -0800, Tony Carolla <carolla@xxxxxxxxx> wrote:
> Declare it for update, with additions, i.e:
> 
>      FFilename  UF A E           K Disk
>      FFilename  IF   E           K Disk
> 
> This way, you can read and/or write.  The other way would be to
> declare the same file twice, with different names:
> 
>      FFilename  IF   E           K Disk
>      FFile2     O    E           K Disk    ExtFile('LIB/FILENAME')
>      F                                     Rename(FmtName:FmtName2)
> 
> This way, you can use Filename to input, and File2 to output to.  The
> system should use blocking this way, so it might be faster.  When
> compiling this second method, you must override the FILE2 entry to
> point at FILENAME, ie.
> 
> OVRDBF FILE2 TOFILE(LIB/FILENAME)
> 
> Hope this helps
> 
> 
> 
> 
> On Wed, 17 Nov 2004 21:40:42 -0600, D.W. Palme
> <dpalme@xxxxxxxxxxxxxxxxxxxxx> wrote:
> > I have a program that I am trying to write and I have made some progress
> > with this, but now I have run into something of which I am not sure how
> > to handle.
> >
> > I have an F spec for a file as an INPUT file....so I can read some
> > records from it.  When I try to define it as an Output file the compiler
> > burps and throws a fit LOL
> >
> > Since I need to both write new records to this file and still be able to
> > read it from within the same program can someone make a suggestion on
> > how to handle this for me?
> >
> > Thanks,
> >
> > Douglas
> >
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