Monday, March 19, 2012

Non-Cluster Index PK

I have a client that has created Primary Keys with Non-Cluster indexes.
These Primary Keys are usually monotically increasing. Who much will this
slow down table joins using Primary Keys that Non-Cluster Indexes.
Please help me with this topic.
Thank You,It really depends. What is clustered? Are foreign keys indexed? Are other
columns used in predicates indexed? Are they having performance problems at
all? Can you run some tests on a development server?
Adam Machanic
SQL Server MVP
http://www.datamanipulation.net
--
"Joe K." <Joe K.@.discussions.microsoft.com> wrote in message
news:A3D054C0-F6A4-4AAF-A217-F26B83079F0D@.microsoft.com...
> I have a client that has created Primary Keys with Non-Cluster indexes.
> These Primary Keys are usually monotically increasing. Who much will this
> slow down table joins using Primary Keys that Non-Cluster Indexes.
> Please help me with this topic.
> Thank You,|||On Wed, 26 Oct 2005 09:21:05 -0700, Joe K. <Joe
K.@.discussions.microsoft.com> wrote:
>I have a client that has created Primary Keys with Non-Cluster indexes.
>These Primary Keys are usually monotically increasing. Who much will this
>slow down table joins using Primary Keys that Non-Cluster Indexes.
>Please help me with this topic.
Several answers posted to you yesterday.
J.

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