Re: SQL vs DDS

["R. Bruce Hoffman, Jr." <rbruceh@xxxxxxx>]

Rob Berendt wrote:
> 
> Good point there.  Perhaps they could find a way to integrate SQL with
> the system database catalog.  You know, all that info that started showing
> up in those QADB* files.  These are the files that make doing a DSPFFD
> into a file obsolete.  But then again we might break down into another
> argument about whether or not to always call the field INVOICE# in all
> files, and use the PREFIX keyword if necessary,  or name it something
> different in every file.
> 

You missed something. The QADB* files ARE linked and live.

They also exist as standard SQL catalog files. If you create a
collection in SQL, then you will have a library that contains the
journal, receivers and a bunch of 'logical' files that are pointed back
to the full system catalog files that are stored in QSYS2.

These include such wonder stuff as the COLUMNS, TABLES tables. The views
in the collection are just logicals that limit the data to the meta-data
concerning the collection library.


-- 
===========================================================
R. Bruce Hoffman, Jr.
 -- IBM Certified AS/400 Professional System Administrator
 -- IBM Certified AS/400 Professional Network Administrator

"The sum of all human knowledge is a fixed constant.
    It's the population that keeps growing!"
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