Re: Subfile question

[Brian Parkins <goodprophet.bp@xxxxxxxxx>]

A couple of considerations regarding load-all and page-at-time subfiles.

Firstly, remember the information loaded in the subfile is a duplicate 
of the source data. As time passes, this duplicate will become 
increasingly "stale" and no longer represent the accuracy of the 
underlying data. Depending on the application, this may not be an issue. 
However, if currency/accuracy IS important, then a single-page subfile, 
(SFLPAG=SFLSIZ) may be more appropriate.

Secondly, if sensible filtering is in place the User should not be 
paging up/down more than a couple of screens-worth. So why load an 
entire subfile with 100's of rows? Again, depends on the application and 
how much data is involved.

(Since the maximum size of a subfile is only 9,999 rows, I don't think 
performance was ever an issue. IMHO, the three different "load 
techniques" address different usability criteria - i.e. one size does 
not fit all situations.)

HTH,
Brian.

On 17/07/2024 02:30, Reeve wrote:
> Single-page subfiles were good back in the days of dreadfully-slow
> machines.  With today's faster machines, taking an extra second to load a
> big subfile which the user can page through quickly appears to be a good
> design/resource tradeoff.