PHWinfo - Afficher un message - Re: Is ROLLUP really better than doing a nested query when rank is involved?

05/09/2007, 03h09

On Sep 5, 12:09 am, Jason Lepack <jlep...@gmail.com> wrote:
> What does the query plan show for the results of these two queries?
> you keep talking about somethat should, in theory be correct, but why
> not check if it ACTUALLY does this in reality... That would the
> easiest way to compare the queries, because that's where it matters.
>

You are right, and I figured I needed to do that. Since I am not a DBA
though, I am still learning how to do that: check the query plan...

05/09/2007, 03h09	#2
csimam@gmail.com Messages: n/a Hébergeur:	Re: Is ROLLUP really better than doing a nested query when rank is involved? On Sep 5, 12:09 am, Jason Lepack <jlep...@gmail.com> wrote: > What does the query plan show for the results of these two queries? > you keep talking about somethat should, in theory be correct, but why > not check if it ACTUALLY does this in reality... That would the > easiest way to compare the queries, because that's where it matters. > You are right, and I figured I needed to do that. Since I am not a DBA though, I am still learning how to do that: check the query plan...