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>the programm runs quick enough. there are no performance problems. it's >more the second part of your last sentence: to do it right. OK, I know I'm about a week behind here, but I'd point out the following: 1) Does the program solve the busines need? 2) Does the program run "quick enough"? (really part of #1) 3) Is the program easy to maintain in the future? 4) Does the program follow "Shop standards"? 5) Do you have anything else on you list of ToDo's? (Who doesn't) If you answered "yes" to these questions the you have "done it right" and should leave it alone. If not then the other suggestions have been excellent. I would also point out however, that an increase in performance gained from moving to something like an user index has to be ballanced against the loss of "ease of maintenance." If I had to guess, I'd say less that 1% of the RPG programmer base has even heard of user indexes, let alone used them. (Oh, and I don't think the number of people that have heard of user spaces is much larger) -Walden ------------ Walden H Leverich III President Tech Software (516) 627-3800 x11 (208) 692-3308 eFax WaldenL@TechSoftInc.com http://www.TechSoftInc.com Quiquid latine dictum sit altum viditur. (Whatever is said in Latin seems profound.) -----Original Message----- From: Mihael Knezevic [mailto:m.knezevic@porta.de] Sent: Tuesday, January 21, 2003 10:04 AM To: RPG programming on the AS400 / iSeries Subject: RE: user space the programm runs quick enough. there are no performance problems. it's more the second part of your last sentence: to do it right. and to learn more about userspace would also be nice. but i think you're right. i'll take a look at the archives. thanx. mk -----Original Message----- From: Richard B Baird [mailto:rbaird@esourceconsulting.com] Sent: Tuesday, January 21, 2003 2:33 PM To: RPG programming on the AS400 / iSeries Subject: Re: user space Mihael, there are other rpg lists, but this is the only one i use. as far as using a user space for your table file, that seems to me to be a bit of overkill, unless your goal is to learn more about userspaces. A better option might be loading the file into an RPG table. there was a large thread on this list a month or so ago that talked about what to do in this situation. If i remember correctly, the concensus was that chaining to a 30 record file many multiple times, you would gain little by loading the file into a table. It was something about the as/400 single level store - after the 1st (pick a number) chains to your table file, the database optimizer would recognize that this was a file that is going to be used a lot, and would leave it in resident memory for easy access. 15000 records is not a large number of records to process, and 15000/10 chains is also not a huge number for chains. this program should run fairly quickly (easily under a minute?) on a right-sized iseries. even faster if run in batch. are you having performance problems with this program? or are you just writing it and want to do it right the first time? hth, rick -------original message------- hi rpg400 list, i'm quite new and inexperienced to rpg (especially rpg iv) so sorry for the newbie questions. my first question: is this list only for rpg400 or also for rpg iv (previously named ile rpg) ? i got the following situation: my programm accesses to tables. one table is read from top to bottom, every record, and has about 15000 records. the second table is accessed about every 10th record and has only 30 records. now my second question: would it be better to read the necessary data from the second table into a userspace object? if so, how do i store and access it from the userspace object. or are there any other way to have less database access/workload. it seems to me that it would be faster to first store the data in some temporary memory. though i could be wrong, cause that would be the way i would do it on a PC and i know that it's a big difference. i'm thankfull for every suggestion. thanx in advance. mk _______________________________________________ This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list To post a message email: RPG400-L@midrange.com To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo.cgi/rpg400-l or email: RPG400-L-request@midrange.com Before posting, please take a moment to review the archives at http://archive.midrange.com/rpg400-l. _______________________________________________ This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list To post a message email: RPG400-L@midrange.com To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo.cgi/rpg400-l or email: RPG400-L-request@midrange.com Before posting, please take a moment to review the archives at http://archive.midrange.com/rpg400-l.
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