Re: Dynamic schema. Urgent question!
Date: 25 Aug 2003 00:49:53 -0700
Message-ID: <d82d4c44.0308242349.6ad15070_at_posting.google.com>
Ok, im completaly agree with you but the tecnician say the dynamic solution is compliant with all Codd rules.
Now i have two question:
- Anyone knows what say Codd about dynamic DB schema variable in the time? (I suppose the tecnician have no doubt that same Codd'r rule approves the dynamic schema)
- this is my curiosity on a question really theoric. The 12 Codd's Rules are applicable to DB design or to RDBMS implementation? Or the two things togheter? I think that the rules ( i.e. like numer 5 or 7) are more inherent to RDBMS and not DB schema on the other hand the title of the Codd'a article is :"Is your RDBMS really relational?". Some other rules (like 10) are more aboiguos. So if i have a db structure described with as E\R diagram and implement inside a RDBMS like Oracle and SqlServer is it correct to say :"The db structure is compliant with all the Cood's rules the the RDBMS implements" ?
Pheraps my question is really ingenuous and whithout pratical application but i have a biug doubt on this argument.
PS
Excuse me for my awful english :))
thanks in advance
joe.celko_at_northface.edu (--CELKO--) wrote in message news:<a264e7ea.0308221307.2a3db380_at_posting.google.com>...
> >> A client's tecnician want that the db have a dynamic schema, thats
> is
> in the time the user may create and insert new tables whit new columns
> and the hew table have reference relationship with the db static side
> ...What's your idea?? <<
>
> The man is an idiot. You might want to get an new client. He does
> not understnad how an RDBMS works.
Received on Mon Aug 25 2003 - 09:49:53 CEST