Click here to monitor SSC
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Index Types


Index Types

Author
Message
OCTom
OCTom
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: 2813 Visits: 4152
I knew it had to be more than two and thought it was less than 10. So, I stabbed at it with eight and got it right. :-P It made me review indexes and that's a good thing.
sjimmo
sjimmo
Hall of Fame
Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)

Group: General Forum Members
Points: 3342 Visits: 2816
I must add my own .02 to this thread. I to come up with the correct answer being wrong. Using the reference given, I see that some of the indexes identified as correct answers are truely modifiers of the basic index types. How can these be acceptable index types?

Steve Jimmo
Sr DBA
“If we ever forget that we are One Nation Under God, then we will be a Nation gone under." - Ronald Reagan
sjimmo
sjimmo
Hall of Fame
Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)Hall of Fame (3.3K reputation)

Group: General Forum Members
Points: 3342 Visits: 2816
Also, to use Paul Randall's method from a couple of weeks ago - this is for my point I lost

Steve Jimmo
Sr DBA
“If we ever forget that we are One Nation Under God, then we will be a Nation gone under." - Ronald Reagan
magasvs
magasvs
Ten Centuries
Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)Ten Centuries (1.3K reputation)

Group: General Forum Members
Points: 1285 Visits: 752
I new I will get incorrect answer Smile

I based my answer on sys.indexes "type" column:

Type of index:

0 = Heap

1 = Clustered

2 = Nonclustered

3 = XML

4 = Spatial
gchornenkyy
gchornenkyy
SSC-Addicted
SSC-Addicted (419 reputation)SSC-Addicted (419 reputation)SSC-Addicted (419 reputation)SSC-Addicted (419 reputation)SSC-Addicted (419 reputation)SSC-Addicted (419 reputation)SSC-Addicted (419 reputation)SSC-Addicted (419 reputation)

Group: General Forum Members
Points: 419 Visits: 373
michael.kaufmann (7/22/2010)
Wayne,

first of all thank you for compiling a QotD.
However, I do not quite agree with the solution.

'Unique' is just taking the definition of a clusterd or non-clustered index a step further.
'with included columns' and 'filtered' again are non-clustered indexes (with advanced features).
So I don't see them as individual types, but sub-types at best.

Hence it comes down to 5 types (why I got it wrong):
- clustered
- non-clustered
- full-text
- spatial
- XML

I assume, though, that this is another wording issue ;-); nevertheless an excellent lesson having to recap what index types there are.

Thanks,
Michael


And XML index may be
- Primary
- Secondary

And secondary XML index can be
- for Path
- for Value
- for Property

As for me the question is not formalized properly
Daniel Bowlin
Daniel Bowlin
SSCrazy
SSCrazy (3K reputation)SSCrazy (3K reputation)SSCrazy (3K reputation)SSCrazy (3K reputation)SSCrazy (3K reputation)SSCrazy (3K reputation)SSCrazy (3K reputation)SSCrazy (3K reputation)

Group: General Forum Members
Points: 2950 Visits: 2629
Good question.

Filtered index....who knew.
jarney
jarney
Hall of Fame
Hall of Fame (3.4K reputation)Hall of Fame (3.4K reputation)Hall of Fame (3.4K reputation)Hall of Fame (3.4K reputation)Hall of Fame (3.4K reputation)Hall of Fame (3.4K reputation)Hall of Fame (3.4K reputation)Hall of Fame (3.4K reputation)

Group: General Forum Members
Points: 3359 Visits: 675
If an XML Primary Index and an XML Secondary Index have different index structures (see Qo
D from July 22) doesn't that imply that they are separate index types?



SQLRNNR
SQLRNNR
SSC-Insane
SSC-Insane (21K reputation)SSC-Insane (21K reputation)SSC-Insane (21K reputation)SSC-Insane (21K reputation)SSC-Insane (21K reputation)SSC-Insane (21K reputation)SSC-Insane (21K reputation)SSC-Insane (21K reputation)

Group: General Forum Members
Points: 21071 Visits: 18259
Thanks for the QOD wayne.



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


SQL RNNR

Posting Performance Based Questions - Gail Shaw

weitzera
weitzera
SSC Eights!
SSC Eights! (894 reputation)SSC Eights! (894 reputation)SSC Eights! (894 reputation)SSC Eights! (894 reputation)SSC Eights! (894 reputation)SSC Eights! (894 reputation)SSC Eights! (894 reputation)SSC Eights! (894 reputation)

Group: General Forum Members
Points: 894 Visits: 629
For a different take on essentially the same question, see the discussion from May 21st
http://www.sqlservercentral.com/Forums/FindPost925652.aspx



Dan Guzman - Not the MVP (7/22/2010)
All questions have to be prefaced by Server version and 'according to MS Docs' or 'my own personal opinion based on how much detail I felt like digging into at the time.'

Dan Guzman - Not the MVP
Dan Guzman - Not the MVP
Right there with Babe
Right there with Babe (724 reputation)Right there with Babe (724 reputation)Right there with Babe (724 reputation)Right there with Babe (724 reputation)Right there with Babe (724 reputation)Right there with Babe (724 reputation)Right there with Babe (724 reputation)Right there with Babe (724 reputation)

Group: General Forum Members
Points: 724 Visits: 736
Man you guys are finicky.

Many of you prove your point by quoting MS documentation, but others of you claim MS Documentation isn't good enough.

Which is it?

So do all questions have to be prefaced by Server version and 'according to MS Docs' or 'my own personal opinion based on how much detail I felt like digging into at the time' ?

Someone also mentioned that unique indexes are clustered. Really? Non-clustered indexes can't be unique?

Thanks for the question Wayne - "You can't please all the people all the time." - Abe Lincoln

Dan
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