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christopher sagayam wrote: > in rpg programming > > 1.in form type I what is the use of SEQUENCE eg.AA etc > This goes back to RPG II where multiple record types (formats) where in a flat file and processed in a certain order. Unless you have to maintain old code, don't worry, be happy. If you have to maintain old code, you might just want to leave it alone. > 2.how are indicators U0-U9,MR used. > U0 through U9 are external switch indicators. On the AS/400 you alter them on or off with either another program or use the CL command CHGJOB with the SWS parameter. (I think its the SWS or maybe SWITCH, I forget.) MR is beyond the scope of e-mail. Matching record indicator. Used with M1 through M9 to build match fields between two or more files. Causes the files to be merged in a "keyed" order according to rules for M1 through M9. Usefull, but many people avoid it. Again, it comes from the orginal RPG specs. Many consider it "antiquated". > 3.is there any way i can try out RPG programs using internet ie > downloading or etc. > Downloads of RPG are somewhat hard to find on the internet. But you still need a compiler to truely learn. > 4.can a subfile be used to access data from different physical files if > so how can an update pgm work on different physical files. > I am not sure, but I think you have the wrong impression of a subfile. A subfile allows multiple records of your own design to be displayed on a screen at one time. Handling of rollup and rolldown keys is supported and the programmer does not have to do a whole lot of coding to make this "screen magic" happen. So if you read multiple files and populate the subfile and then display it... it happens. b. > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > +--- > | This is the Midrange System Mailing List! > | To submit a new message, send your mail to MIDRANGE-L@midrange.com. > | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. > | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. > | Questions should be directed to the list owner/operator: david@midrange.com > +--- -- =========================================================== R. Bruce Hoffman, Jr. -- IBM Certified AS/400 Administrator -- The sum of all human knowledge is a fixed constant. It's the population that keeps growing! +--- | This is the Midrange System Mailing List! | To submit a new message, send your mail to MIDRANGE-L@midrange.com. | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +---
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