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Maximum No. of Indexes
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Sriram-288748
Sriram-288748
Posted Thursday, March 19, 2009 9:16 PM
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Comments posted to this topic are about the item
Maximum No. of Indexes
Sriram
Post #680108
ChiragNS
ChiragNS
Posted Friday, March 20, 2009 12:38 AM
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In BOL under Creating Indexes (Database Engine) section its mentioned that there can be 249 non clustered indexes per table.
But In BOL under Create table sections its mentiond 999
"Keep Trying"
Post #680158
Adi Cohn-120898
Adi Cohn-120898
Posted Friday, March 20, 2009 12:48 AM
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Chirag (3/20/2009)
In BOL under Creating Indexes (Database Engine) section its mentioned that there can be 249 non clustered indexes per table.
But In BOL under Create table sections its mentiond 999
In that case BOL has a bug
Adi
--------------------------------------------------------------
To know how to ask questions and increase the chances of getting asnwers:
http://www.sqlservercentral.com/articles/Best+Practices/61537/
For better answers on performance questions, click on the following...
http://www.sqlservercentral.com/articles/SQLServerCentral/66909/
Post #680168
Betim Drenica
Betim Drenica
Posted Friday, March 20, 2009 1:36 AM
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I am also confused because in BOL (Indexes Section) is mentioned 249
{
The maximum number of nonclustered indexes that can be created per table is 249.
}
. This is a really documentation bug I think. Even if, I'll expend some time to prove this in my srv.
Post #680182
Hugo Kornelis
Hugo Kornelis
Posted Friday, March 20, 2009 2:14 AM
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Chirag (3/20/2009)
In BOL under Creating Indexes (Database Engine) section its mentioned that there can be 249 non clustered indexes per table.
But In BOL under Create table sections its mentiond 999
As others have already said, this is a documentation bug in BOL. The maximum number of nonclustered indexes
was
249 on SQL Server 2005 and before, but the maximum has been increased to 999 for SQL Server 2008. Apparently, MS has overlooked one page when applying this modification to BOL.
Hugo Kornelis, SQL Server MVP
Visit my SQL Server blog:
http://sqlblog.com/blogs/hugo_kornelis
Post #680189
Andrew Watson-478275
Andrew Watson-478275
Posted Friday, March 20, 2009 4:03 AM
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Just as well one of the answers wasn't 250, or I would have gone for that (1C + 249NC). I hit the wrong page in BOL first, and it's only when the answer I was expecting wasn't in the choices that I dug a bit further.
Couldn't the answer also be 1498 when we take the 249 XML indices and 249 spacial indices into account as well?
Post #680235
Sriram-288748
Sriram-288748
Posted Friday, March 20, 2009 6:54 AM
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Yes, the answer could have been that also, but for in the question we have (clustered + non clustered) explicitly mentioned.
Sriram
Post #680350
Luke L
Luke L
Posted Friday, March 20, 2009 7:26 AM
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How very un-binary of them... I found 999 an odd number to have as a maximum.
To help us help you
read this
For better help with performance problems please
read this
Post #680360
rudy - Doctor "X"
rudy - Doctor "X"
Posted Friday, March 20, 2009 7:29 AM
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Regardless of the discrepancy, 249 or 999, any design that requires anywhere near that theoretical maximum, is most probably a 'pile of dung' !
Regards
Rudy Komacsar
Senior Database Administrator
"Ave Caesar! - Morituri te salutamus."
Post #680364
Steven Cameron
Steven Cameron
Posted Friday, March 20, 2009 7:35 AM
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When the question specifies the version of SQL Server, you should double check that the selected article in BOL is for that version. The Local Help search in BOL lists only the 2005 version of CREATE INDEX while the MSDN Online search section lists articles for both the 2005 and the 2008 versions.
Post #680372
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