Oracle FAQ | Your Portal to the Oracle Knowledge Grid |
Home -> Community -> Usenet -> c.d.o.server -> Re: Skill testing SQL question
David Pomphrey wrote:
>
> From David P -
>
> Jonathan - have you never heard of a correlated delete?
>
> They are very useful (as are correlated subqueries (SELECTs), correlated
> updates, deletes etc.)
>
> For instance - a correlated update is a fantastic way to denormalise a
> database.
>
> So yes the question only had 6 tuples but it was testing the interviewee's
> knowledge of a much more useful area of SQL knowledge i.e. correlation
>
> You have been told!
>
> David P.
>
> ==============================================================================
I think Johnathon could quite happily rest his case on your response...
I'll think you'll find that Johnathon probably knows more about correlated select/delete than most of us put together...
Cheers
--
"Some days you're the pigeon, and some days you're the statue." Received on Fri Nov 05 1999 - 04:44:11 CST