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  3. September 2006

Re: Performance of ODBC vs. other access methods

Charles,

I have a 1998 copy of the AS/400 Experts Journal Volume I, Number I on my 
desk.  It has an article in there by Skip Marchesani in which he states 
that it is a MYTH to believe that "logical 
files on a file are resource intensive, have a negative impact on 
performance, and should only be used when absolutely necessary".  He goes 
on to state that IBM cleaned this up on V2 of OS/400 and even better in V3 
of OS/400.  Others say they have testing that disputes Skip's statements.

Granted, in the early days, John Sears used to tell story after story 
about how people went wild with Logical files and seriously impacted 
performance.  But John has been retired for a few years now and the OS has 
marched on.

Rob Berendt

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