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Companion content for Chapter 6 (Index Internals) of SQL Server 2008 Internals
Recently, the SQL Server 2008 Internals title was released (and only in the past few days have people actually received their copies)! In fact, I still haven't seen the book in person... soon though!...
View ArticleColumn order doesn't matter... generally, but - IT DEPENDS!
OK, for years I've been saying that SQL Server doesn't care about the order in which you define the columns of your table because internally SQL Server will re-arrange your columns to store all of the...
View ArticleFiltered indexes and filtered stats might become seriously out-of-date
Time flies when you're having fun, eh? This week Paul and I are in Dublin, Ireland delivering a deep technical "SQL Immersion Event" on Internals, Performance Tuning and Maintenance with our partner...
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A new and improved sp_helpindex (jokingly sp_helpindex8)
NOTE: I've released other versions of sp_helpindex since this post. Check out the category: sp_helpindex rewrites for all of the options! OK, I first blogged about re-writing sp_helpindex here as...
View ArticleMore considerations for the clustering key - the clustered index debate...
OK, I've talked about the clustering key many times. Here, I thought I'd bring together one final series of details (and links) to help you really understand why I'm so adamant about DESIGNING a...
View ArticleHow can you tell if an index is REALLY a duplicate?
There's a lot of confusion around duplicate indexes and I think a lot of it has to do with how sp_helpindex (or even SSMS) display what's in an index. What's actually in the index - and how it's...
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