Re: 1st rpg question, fellows

[ericadelong@xxxxxxxx]

     Hmmmm.....
     
     Ok, first let me offer a suggestion. You may want to look at 
     multi-occurance data structures as a means of building a multi-column 
     table in RPG.  MODS lets you define a datastructure and then treat it 
     like an array (more or less). When used along with alt table, you end 
     up with something like:
     
     D Ary1            S            10A    dim(100)  <-holds lookup value
     
     D DS1             DS                  Occurs(100)      
     D  Value1
     D  Value2
     D  ...
     D  Valuex
      
     C                Clear     x  
     C      Value     Lookup    Ary1,x       
     C      x         Occur     DS1 
     
     
     When you perform the lookup, the value of x (the index corresponding 
     to "Value") is used to set the data structure occurance. 
     
     I probably did not express that very well. Anyway, look it over and 
     see what you think. Good luck.
     
     Eric A DeLong
     ericadelong@pmsc.com

______________________________ Reply Separator _________________________________
Subject: 1st rpg question, fellows 
Author:  <MIDRANGE-L@midrange.com > at INTERNET
Date:    7/17/98 8:09 AM


well for starters i'm learning tables & arrays.
     
i have a multicolumn report that i'm constructing all 
by tables (arrays are too confusing for me now)
     
rpg iv lets you define only 2 tables in alternating
format. so in order to make a table of say 3 columns, you would need 
to define 2 columns as a single table and then split apart the 2 
pieces after a successful lookup.
     
i think i can do this. but how do i do calculations that will appear 
in a 4th table or even 5th table?
     
confusing? i hope so..
     
M.K.
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