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I need to summarize a big telephone master file (22M+) into ranges. I'm attempting to use read, reap, setll to avoid the need to read each phone number record to create this summary file. However, no luck so far.
a) Have a logical file thats keyed by: areacode, prefix, terminal and suffix (in that order)
b) At the start of your program do a "setll *start"c) use READ to get the area code, prefix and terminal and lowest suffix. Save them somewhere (maybe in a data structure). If the READ fails then you're at the end of the file and you're done.
d) using the area code, prefix and terminal from (C) and setting the suffix to *HIVAL, do a SETGT. Follow that with a READPE (but don't specify the suffix) to get the highest suffix.
e) write the summary recordf) Go back to step (C), continuing the loop until you've read the whole file.
--- Scott Klement http://www.scottklement.com
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