SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Index types 2


Index types 2

Author
Message
sknox
sknox
Hall of Fame
Hall of Fame (3.1K reputation)Hall of Fame (3.1K reputation)Hall of Fame (3.1K reputation)Hall of Fame (3.1K reputation)Hall of Fame (3.1K reputation)Hall of Fame (3.1K reputation)Hall of Fame (3.1K reputation)Hall of Fame (3.1K reputation)

Group: General Forum Members
Points: 3052 Visits: 2852
Hugo Kornelis (8/30/2012)
Thanks, Koen! (EDIT: And Braindonor, who added a reply while I was typing)

I submitted this question quite a long time ago - and I found that I had to spend time to research some of the options again. w00t

BTW, maybe it's a bit early to say anything about the percentages, but at this point I am mainly surprised at:
* 28% wrong answers on the "bitmap on computed" option - I expected this to be lower
* 17% wrong answers on the "nonclustered on a view" option - here, I expected a higher failure rate

The other percentages are (so far) about on par with my expectation.


Good question, Hugo! I guess you could say it was so good, even you learned from it! :-P

I'm most surprised that (at the time I answered) 49% thought "clustered with included columns" was a valid answer. Since the clustered index by design includes all columns at the leaf level, the only way I can see choosing that answer is if they were blindly guessing, or they reasoned that it was a trick choice and "with included columns" meant the implicit inclusion of columns rather than the explicit definition of included columns.
Dana Medley
Dana Medley
SSCrazy
SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)SSCrazy (2.7K reputation)

Group: General Forum Members
Points: 2722 Visits: 1701
Thomas Abraham (8/30/2012)
Thanks for the question Hugo. I should have stretched out before running that hard early in the morning. I think I strained something! :-) I certainly learned something.


For starters + 1 :-D

Excellent question Hugo. Made me think a lot more this morning than I have in a while. I can say without a doubt that I have learned something.



Everything is awesome!
paul.knibbs
paul.knibbs
Hall of Fame
Hall of Fame (3K reputation)Hall of Fame (3K reputation)Hall of Fame (3K reputation)Hall of Fame (3K reputation)Hall of Fame (3K reputation)Hall of Fame (3K reputation)Hall of Fame (3K reputation)Hall of Fame (3K reputation)

Group: General Forum Members
Points: 3028 Visits: 6235
I'd never heard of a bitmap index, but I knew which four answers were right and so did OK. If it hadn't specified there were four right answers I'd have struggled a bit with the bitmap answer, because it's often quite difficult to find something that says "X is unsupported in SQL Server"! :-P
(Bob Brown)
(Bob Brown)
SSC Eights!
SSC Eights! (963 reputation)SSC Eights! (963 reputation)SSC Eights! (963 reputation)SSC Eights! (963 reputation)SSC Eights! (963 reputation)SSC Eights! (963 reputation)SSC Eights! (963 reputation)SSC Eights! (963 reputation)

Group: General Forum Members
Points: 963 Visits: 1145
Thanks for the question. Couldn't get it right even with researching it!
bitbucket-25253
bitbucket-25253
SSCrazy Eights
SSCrazy Eights (9.6K reputation)SSCrazy Eights (9.6K reputation)SSCrazy Eights (9.6K reputation)SSCrazy Eights (9.6K reputation)SSCrazy Eights (9.6K reputation)SSCrazy Eights (9.6K reputation)SSCrazy Eights (9.6K reputation)SSCrazy Eights (9.6K reputation)

Group: General Forum Members
Points: 9619 Visits: 25280
I read this

Note that some index types may require additional attributes to be specified; this does not invalidate them for the context of this question. Only index types that include illegal attribute combinations or non existing attributes should be discarded. Also note that this question is not about the exact spelling of the various options


and immediately realized that it was another question by Hugo Kornelis.
So back to BOL, Google and multiple cups of coffee.

But once again I learned something ... Mr Kornelis I thank you.

If everything seems to be going well, you have obviously overlooked something.

Ron

Please help us, help you -before posting a question please read

Before posting a performance problem please read
sestell1
sestell1
SSCrazy
SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)SSCrazy (2.8K reputation)

Group: General Forum Members
Points: 2801 Visits: 3472
Argh, good question Hugo.
Sadly, I checked off the ones that weren't valid, and forgot to switch them before hitting submit. Angry
EL Jerry
EL Jerry
SSCarpal Tunnel
SSCarpal Tunnel (4.1K reputation)SSCarpal Tunnel (4.1K reputation)SSCarpal Tunnel (4.1K reputation)SSCarpal Tunnel (4.1K reputation)SSCarpal Tunnel (4.1K reputation)SSCarpal Tunnel (4.1K reputation)SSCarpal Tunnel (4.1K reputation)SSCarpal Tunnel (4.1K reputation)

Group: General Forum Members
Points: 4122 Visits: 1345
Great question, Hugo, got it wrong because of poor researching, but this is something good to have learned.

"El" Jerry.

"A watt of Ottawa" - Gerardo Galvan

To better understand your help request, please follow these best practices.
Erav
Erav
SSC Veteran
SSC Veteran (227 reputation)SSC Veteran (227 reputation)SSC Veteran (227 reputation)SSC Veteran (227 reputation)SSC Veteran (227 reputation)SSC Veteran (227 reputation)SSC Veteran (227 reputation)SSC Veteran (227 reputation)

Group: General Forum Members
Points: 227 Visits: 168
Great Question..

-Erav
SQLRNNR
SQLRNNR
SSC-Forever
SSC-Forever (41K reputation)SSC-Forever (41K reputation)SSC-Forever (41K reputation)SSC-Forever (41K reputation)SSC-Forever (41K reputation)SSC-Forever (41K reputation)SSC-Forever (41K reputation)SSC-Forever (41K reputation)

Group: General Forum Members
Points: 41171 Visits: 18565
Good question Hugo.



Jason AKA CirqueDeSQLeil
I have given a name to my pain...
MCM SQL Server, MVP


SQL RNNR

Posting Performance Based Questions - Gail Shaw

Narud
Narud
SSCommitted
SSCommitted (1.7K reputation)SSCommitted (1.7K reputation)SSCommitted (1.7K reputation)SSCommitted (1.7K reputation)SSCommitted (1.7K reputation)SSCommitted (1.7K reputation)SSCommitted (1.7K reputation)SSCommitted (1.7K reputation)

Group: General Forum Members
Points: 1683 Visits: 507
Yes! Proudly I'm part of the 73% that went wrong. Pinch But I've learned something new, and now I know a little bit more of SQL of what I knew yesterday.

Hugo, thanks for this good question.
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search