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SQL Server 2008
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SQL Server 2008 - General
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Clustered Key. (Making it unique).
Clustered Key. (Making it unique).
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ben.brugman
ben.brugman
Posted Monday, August 20, 2012 3:35 AM
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Dear reader,
I remember (from 2000 version):
If the clustered key is not unique. A artificial field is added to make it unique.
How is this called?
Where is this described (webpage) ?
Is this still valid?
Ben Brugman
Post #1347043
Suresh B.
Suresh B.
Posted Monday, August 20, 2012 3:38 AM
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Yes. It is still valid.
It's caled uniquifier.
Post #1347045
GilaMonster
GilaMonster
Posted Monday, August 20, 2012 3:53 AM
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It's described in Books Online, I think under index architecture.
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild
: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass
Post #1347051
ben.brugman
ben.brugman
Posted Tuesday, August 21, 2012 1:48 AM
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Suresh B. (8/20/2012)
Yes. It is still valid.
It's caled uniquifier.
Thank you,
Using the term uniquifier, on line I found:
[url=http://www.mssqltips.com/sqlservertip/2082/understanding-and-examining-the-uniquifier-in-sql-server/][/url]
In books online I could not find the term uniquifier, neither could I find a description of the phenomem. But that could be my problem with the books on line. (I did use the old BOL a lot, but with the 'new' BOL, I tend to find the information faster on the web).
Thanks,
Ben Brugman
Post #1347616
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