re: RRN in a logical file:

["David H. Shaw" <Dave_Shaw_at_GNP@xxxxxxxxxxxxxx>]

Booth,

Pete Hall wrote:

>> Will RRN #1 be the first record in the file logically? 
Or will it be the first record that arrived in it? <<

>Booth,

>You'll need to confirm this with a test, but I believe that the relative
>record number refers to the underlying physical file.

Pete is 100% correct (I'm sure no one is surprised).  I tinkered with this
quite a bit several years ago.  In a single format/single based-on member
logical this can be very useful.  In a join logical file, one has to be 
_very_ careful how one uses it, as it's very easy to have multiple logical
records which report the same relative record number, when a single record in
the primary file joins to multiple records in one or more joined files.  This
can also occur if a logical member is scoped over two or more physical
members.

Dave Shaw in Greenville, SC
mailto: Dave_Shaw_at_GNP@compuserve.com
The opinions expressed may not be my employer's unless I'm sufficiently 
persuasive...
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