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  3. March 2003

Re: DB2

Leif Svalgaard wrote
It was not relational at the time and still isn't. The relational stuff is
built on top of a basic ISAM-type database allowing split-key
alternate indices (A.K.A. logical files).

Reply:

I have always maintained that the DB on the AS/400 is only relational insofar as:
The design of the database and
The application that maintains it' s integrity.

If a database does not have the ability to truly ensure it's own referential integrity, is it a true relational database?
There are some rules with which it should comply. Does DB/2, or is it only now starting (attempting) to comply?

The following is interesting:
http://www.frick-cpa.com/ss7/Theory_RelationalDB.asp

Cheers.

Jan.


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