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Question for all who are interested in learning IAM Expand / Collapse
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Posted Wednesday, January 27, 2010 2:01 AM
Old Hand

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Question for all who are interested in learning IAM

IAM is basically a roadmap for heap's data pages. Then why do we call this Index Allocation Map.

In sql2005 onwards this has started allocating INCLUDE columns for non clustered index, BLOB and row over flow data etc as well.
Post #854231
Posted Wednesday, January 27, 2010 7:29 AM


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Is there a question here?

IAM is basically a roadmap for heap's data pages.


Not just heaps.

In sql2005 onwards this has started allocating INCLUDE columns for non clustered index, BLOB and row over flow data etc as well.


Include columns aren't reflected in, nor do they affect IAM pages.



Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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