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> 1.in form type I what is the use of SEQUENCE eg.AA etc uh, it had something to do with cards. (i think..) a little before my time, but i remember them talking about it in rpg school (1972). i doubt that any one uses it at all anymore. > 2.how are indicators U0-U9,MR used. the u indicators are passed from program to program, and stay on until set off. they can also be used to condition files. sometimes we use them to determine whether to print an edit report, or whether the job is update or edit.mr is matching record, and it is a special kind of processing that uses the rpg cycle. you define them in your input, and you have to have a primary and secondary file. matching record is tricky, but under certain circumstances can be really handy. but you do need to be careful that you understand the logic, or you can end up with a mess. items to watch for are: be sure the data is in sequence, or the program will halt if you are updating information, you cannot update a record you have released. for example, if you read a customer master as your primary file, and the read transactions, you cannot update the customer file. it will update the next one! > 3.is there any way i can try out RPG programs using internet ie > downloading or etc. not that i know of. > 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'm afraid i don't understand the question, so i'll let someone else handle that one! nj
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