Re: Niftiest thing(s) you have done in RPG ILE or /FREE

Excle does have a logical limit of 65536 rows and 256 columns, at least most
versions. I think I heard 2007 has a larger ones.

Also, the POI API creates the entire spreadsheet in memory before writing it
out. I think it has to do this because of the binary interchange file format
(BIFF). I could be wrong there though, so don't quote me on that.

Excel has gotten better about support XML, if you have large Excel files
writing to XML might be faster. But, IMHO, Excel files should not really be
that big. It's not really a database ;-)

James R. Perkins


On Thu, Jan 8, 2009 at 12:01, Marvin Radding <
marvin.radding@xxxxxxxxxxxxxxxxxxxxx> wrote:

The niftiest thing I did was write a command CVTXLS to dump any file into
an Excel spreadsheet (Thank you Scott, your service program made it much
easier).
This brought up a problem with AS/400 JVM that I haven't been able to
overcome. The first file I attempted to dump was a 119 column, 225,000 rows.
It ran for 36 hours and only processed 40,000 records. Used too much memory.
Towards the end the garbage cleanup function was being called every time a
Java call was executed and was taking longer and longer. I finally had to
cancel the program. The program ran alright when I limited the file to
15,000 records and started another spreadsheet.
Marvin

------------------------------

message: 6
date: Thu, 8 Jan 2009 14:45:37 -0500
from: Alan Shore <AlanShore@xxxxxxxx>
subject: Re: FW: Niftiest thing(s) you have done in RPG ILE or /FREE

Small, teeny, tiny, litle-itty bit programs


Alan Shore
Programmer/Analyst, Distribution
E:AShore@xxxxxxxxxxx <E%3AAShore@xxxxxxxxxxx>
P:(631) 200-5019
C:(631) 880-8640
--
This is the RPG programming on the IBM i / System i (RPG400-L) mailing list
To post a message email: RPG400-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/rpg400-l.