Re: 'Record Format Selector Program': Re: Join & Update

When you write a new record to a multi-format logical file, you can
choose which record format is written to the file (and therefore
which physical file receives the insert/update operation) simply
by using the record format name, rather than the filename on your
WRITE statement, (or your output specs if you prefer except)

However, if you're using the file as a program described file, you
have no way of indicating WHICH format (and therefore which phy file)
the record is added to...

This is what 'record format selector programs' are for.  They let you
write a little program that selects which record format to write to,
based on the contents of the data thats being written.

This way your programs that use a program-description can continue to
run -- they dont have to be re-written to use the external description

For more info, see:
http://publib.boulder.ibm.com/cgi-bin/bookmgr/BOOKS/QBKAUC01/2.3.4.1


Rob Berendt <rob@dekko.com> wrote:
>
> What is a 'record format selector program'?  I've used multiformat
>  logicals before
> and don't recall this animal.
>
>
> infosys@klements.com on 10/18/99 03:12:43 PM
> Please respond to RPG400-L@midrange.com@Internet
> To: RPG400-L@midrange.com@Internet
> cc:
> Fax to:
> Subject: Re: Join & Update
>
> Jim,
>
> It seems to me that you probably want a multi-format logical, rather
> than a join logical....   With a multi-format logical, (and perhaps
> the help of a record format selector program -- at least temporarily
> you should be able to do what you're looking for...
>
> At least, if I understand what you're saying :)
>
>
>
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