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  2. RPG400-L
  3. December 2005

Re: Input Secondary

>
> If no matching record specified, (each) secondary file is read (in turn)
> after the primary file is completely read.


Unless you override this behavior with the NEXT opcode, instructing the
cycle to read  from a given  primary or secondary on the next cycle.  This
feature was most often used when you wanted explicit control of the
"interlacing" of the files when matching records couldn't be used.  It was
generally used in conjunction with look-ahead fields to decide what record
you wanted to read next.

Back in the days of card readers, it could be useful.  :)

Doug

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