Introduction to Indexes

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Introduction to Indexes

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GilaMonster

Posted Sunday, October 25, 2009 12:59 PM

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Comments posted to this topic are about the item Introduction to Indexes

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
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 #808389

rosh-396756

Posted Monday, October 26, 2009 2:59 AM

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Amazing Gail...
I have been looking for an article on Indexes as simple and exhaustive as this for long.

Looking forward to the next 2 parts.

Thanks

Post #808541

omkarred

Posted Monday, October 26, 2009 3:40 AM

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thanks Gail...

waiting for ur next post ...
please elaborate on the clustered & non clustered indexes & implementation of it in actual db

Post #808552

GilaMonster

Posted Monday, October 26, 2009 3:56 AM

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omkarred (10/26/2009)

please elaborate on the clustered & non clustered indexes & implementation of it in actual db

That's what parts 2 and 3 cover.

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
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 #808560

Grant Fritchey

Posted Monday, October 26, 2009 6:13 AM

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Excellent introduction. Nice job Gail. Couldn't ask for better.

----------------------------------------------------
"The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood..." Theodore Roosevelt
The Scary DBA
Author of:
SQL Server Query Performance Tuning
and
SQL Server Execution Plans

Product Evangelist for Red Gate Software

Post #808618

roger_os

Posted Monday, October 26, 2009 7:02 AM

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Thankyou for this, the best I have read so far, all makes sense, looking forward to the next parts

Rog

Post #808650

TheSQLGuru

Posted Monday, October 26, 2009 7:08 AM

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Truly a case where pictures are worth thousands of words. Nicely done.

Best,

Kevin G. Boles
SQL Server Consultant
SQL MVP 2007-2012
TheSQLGuru at GMail

Post #808652

Noel McKinney

Posted Monday, October 26, 2009 7:15 AM

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Thanks Gail for mentioning that "When an index scan is done on the clustered index, it’s a table scan in all but name." Many folks think that performance is always better with clustered index scan than a table scan.

Post #808662

Steve Jones - SSC Editor

Posted Monday, October 26, 2009 7:24 AM

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Excellent job, Gail!

We're publishing part 2 in a couple weeks and part 3 as soon as possible after that.

Follow me on Twitter: @way0utwest

Forum Etiquette: How to post data/code on a forum to get the best help

Post #808674

david.stein-1140863

Posted Monday, October 26, 2009 8:48 AM

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This article is fortuitous for me since I attended a SQL 2008 Development class on Saturday and this topic was covered most of the afternoon.

Thanks for the review. Smile

Post #808745

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