RE: SQL Problem

["Phil" <sublime78ska@xxxxxxxxx>]

Alright Dr. Smith!

I have two questions:

1. How is it different (as far as level checking) from Mark's code?
2. How do you make the pgm fail with a level check error?

Normally I use an external ds for my hostds.

Phil


>
>
> >You could also do this:
> >
> >D  hostDS    ds
> >D     sitnbr      1
> >D     xxxx        5
> >--etc--
> >D  nullDS    ds
> >D     field1      5i 0
> >D     field2      5i 0
> >--etc--
> >
> >C/exec sql
> >C+ fetch c1 into :hostDS :nullDS
> >C/end-exec
>
>
> Danger Will Robinson!
>
> Note that the above code will fail if the database format changes, but the
> program is not recompiled, and NOT with a level check. The level
> checking is
> obviated by this code and using a structure that is fixed by some previous
> point in time as the record layout can lead to headaches.
>
> Unless you are prepared to ALWAYS recompile ALL programs that use a file
> when the database changes, this method is not the recommended way of
> accessing data with SQL. It is convienient, but not a healthy way of using
> SQL.
>
> ===========================================================
> R. Bruce Hoffman, Jr.
>  -- IBM Certified Specialist - AS/400 Administrator
>  -- IBM Certified Specialist - RPG IV Developer
>
> "America is the land that fought for freedom and then
>   began passing laws to get rid of it."
>
>      - Alfred E. Neuman
>
>
>
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