Re: subfile loading question!

[Bob Larkin <blarkin@xxxxxx>]

Jigna,
If I understand your logic, your subfile handling is not the problem. The basic
concept of loading a page at a time, letting the program only handle page down,
extending the subfile, is solid and efficient.

I am assuming that after you write five subfile records, you write the subfile
control ecord and display the subfile. this should only require five reads of 
the
customer master. A page down (*IN85) would require another five reads. (Assuming
you maintained your position in the master file, otherwise, an extra I/O to get
to the customer record for the last record displayed, then read to the next 
one.)

I do not understand what having millions of records in the customer master has 
to
do with your problem.

BTW, you can only load 9999 records in a subfile.

Bob

jigna desai wrote:

> Hi all,
>    i have a situation with a subfile pgm where the SUBSIZ is 6 & SUBPAG
> is 5 .Indicator 85 is rolldown indicator & 84 is rollup.Records r
> read,written & displayed 5 at a time with each subsequent pagedown
> which is handled in the pgm via *IN85.Pageup has no logic since after 3
> pagedowns when 20 records r displayed -the previous 15 records r
> already in the subfile & need not be accessed again.
>      However,the problem is our customer record file being very very
> large comprising of millions of records
> it causes a performance issue since the process is very slow.To handle
> pagedown -- i think there is no better method than used in the pgm so
> what then, should i do so that the process is not slow ?
>

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