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Message Posted: Fri, 27 Jul 2012 @ 13:45:32 GMT
sughesh iyyani wrote:
I don't ;-)
At least i don't know how many are satisfied by Teradata, but i would expect less than that.
A quick check shows at least two broken rules:
Rule 2: The guaranteed access rule -> broken by MULTISET tables
Rule 6: The view updating rule -> only very basic views can be updated
Most RDBMSes break those rules, too.
It's a fully relational DBMS according to Codd's Relational Model.
Some people argue that none of the existing RDBMSes are truly relational based on flaws in implementations and SQL:
Of course they're right, but until there's a "real" RDBMS we have to work with existig implementations :-)
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