On 20/01/17 13:53, Anton Aylward wrote:
imnsho, "efficient" and "first normal form" are provably mathematically incompatible.
So? Codd made that clear back in the 1980s. That wasn't the argument, then. It was that the IT department took months to
On 01/19/2017 02:21 PM, Anthony Youngman wrote: process even the simplest user requests. The possible relationships were all hard coded and THAT WAS THAT!
I actually very much like relational theory. It's a great analysis tool. But there were good tools around even before then (Pick predates relational). The thing about Pick is it stores a 3nf representation of an object in a "table row" so you get all the simplicity of a relational analysis of an object, and all the flexibility of linking objects together. That's why that comment about a P90 being able to outperform a twin Xeon 800 - you get all benefits of relational flexibility, with all the power and speed of what is probably called a hierarchical database. It's just that with Pick, you can pick :-) any object as the root of your hierarchy with equal ease. And the typical Pick house usually takes half an hour to respond to even complicated user requests. A developer mentioned something to a new manager in a meeting, and the manager said "that's a good idea". Next meeting the manager says "we need to schedule time to implement your idea". "No need," says the developer, "after last meeting I went back to my desk and knocked it up there and then." "What!" "It's in production". I'd better get off my soapbox before I really get going :-) Cheers, Wol -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org