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David FOXWELL wrote:
I've read several times lately in articles that, in the author's opinion, RPG is the best language for business logic.
'Best' is a word that needs qualification. If your business is centred
round producing full colour reports with graphics (say a utility bill)
then RPG has some very distinct shortcomings. Someone who has never
tried doing that will probably try to take me to task for writing that.
'For business logic' is a bit vague... what language can't execute an
'IF...ELSE' clause, or a 'DO... WHILE'? Business decisions really
aren't all that difficult. Tedious to implement, maybe, but difficult?
The things RPG does very well:
Simplicity (few operation codes) - although this is eroding with the
addition of BIFs.
Unit record orientation.
External file record format definition.
Sub-procedures and service programs.
Full integration with ILE.
Deep integration with i/OS, including program call, file overrides and
debugging facilities.
Strongly typed variables.
Do note that these are things RPG does very well. That doesn't mean a
given business problem can take advantage of, say, strongly typed variables.
--buck
RPG programmer since July 1978
midrange.com
