Re: SQL pre-processor (was RPG IV release levels and complexity) -- RPG400-L

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Jon Paris wrote:

 >> Basically, just as it's unacceptable for SQL in Rochester to depend on
the compiler for SQL processing, we in compiler development simply don't
want that responsibility either!

I know that Hans - and I didn't suggest anything of the sort.  The only
dependency placed upon the compiler should be for it to recognize the SQL
block.  The syntax checkers do that today so it is hardly arduous.

It would take changes in the compiler and changes in methodology by the
pre-compiler, but there is no need for either party to know the others job.

Jon: The problem is that if we were to adopt that OS/2 style "inner/outer" prep architecture, which is what was on the table, there /would/ be a requirement for the compiler to understand at least some of the SQL language.

That of course doesn't preclude the possibility of other architectures. But considering the complexities of the task, I'm not aware of any. It is a subject I've given some thought to, and indeed I think it is possible to come up with a generalized scheme in the compiler for processing embedded statements that are "pre-compiled" by some 3rd party program. But even in such "pie in the sky" schemes, it's hard to shoe-horn in all the nitty gritties of embedded SQL.

Cheers! Hans

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