Re: Concurrency in an RDB - another question about recursive definitions

Bob Badour wrote:
> paul c wrote:
> ...

>>
>> Given relation : B = { {a,b} | a in A and b in B } /* Using C-style 


> 

>                                                  ^

>                                                  |

> Relations are not domains -----------------------/



Thanks and okay, to put it bluntly, I take it that using B to stand for 
a relation in this way is nonsense.

> One can describe the extent of a domain as a relation.
> The extent of domain B is infinite.
> ...

And I guess it should go without saying that domain B is static/unchanging too, if we want persistent relation values.

p Received on Sun Jan 21 2007 - 17:37:40 CET