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Home » MIDRANGE-L » February 1999

Re: subfile processing: SFLSIZ=SFLPAG (was: readc & sflnxtchg)



fixed

>All this talk of subfiles has me thinking---
>
>I'd like to hear some views on techniques used when SFLSIZ=SFLPAG.

>Wynn Osborne


I like using SFLSIZ = SFLPAG.  Although I haven't coded any -new- programs
using the technique in a while, here's what I remember:


You fill a single page at a time.  When the user rolls, the system reads
more data for the subfile.

Saves programming, is economical of system resources, is quick (ie no long
waits to load 37,432 records into a subfile).

If the data you want is far down the list of data, you will need to code
either a 'position to,' or have the user key the starting location before
you start loading the subfile.

--Paul E Musselman
PaulMmn@ix.netcom.com


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