Re: performance loading a subfile

James kilgore said;
>Booth
>Just thinking out loud, never tried this: Have your selection process
performed
>by a program other than your display program.  Have the two communicate
via data
>queue.  As the display program receives qualified records from the data
queue
>perform your WRITE of the subfile.  And a WRITE to the display so the user
can
>see them. Each time a new record comes in, do a READ/READC of the subfile
to see
>if the user has made a selection.
>
>If they have, process their selection, then play catch-up from the data
queue
>before you redisplay the subfile.


James
I do this session at COMMON.   Externalizing your I/O with SQL.   I use an
external routine using SQL.  It does the Prepare and Fetches,  and passes
the results back as a parm to the caller.  The caller just formats the
Where and Order By clauses.

It works great for Multi-Row Fetches (10-20 records at a time passed back
via a Multi-occurring D/S)

Very slick, and fast.

John Carr




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