Re: What databases have taught me
Date: 25 Jun 2006 14:19:51 -0700
> > > ... AI-type apps where data structures are not only highly variable but unknown in advance which makes a methodolgy where a schema has to be updated, less practical.
> > AI? Our very *brain* can be modelled more or less with a "static schema", I would note:
> > T_Links (srcNd_ID, destNd_ID, weight);
> > T_Node (node_ID, activationFuncInd, activationWeight);
> :) Ddb evolved from similar schemas. The above method, which I refer to
> as generic modelling, shifts "schema" modification from being
> table-centric to row-centric.
Well, whatever it is called, it shows that RDB's are flexible. If you want skinny tables with dynamic attributes, you can. (I agree that existing vendors and query languages don't aways make such easy, but that is the fault of implementation, not of relational theory.)
-T- Received on Sun Jun 25 2006 - 23:19:51 CEST