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ALTER INDEX REORGANIZE Compacts pages that contain large object (LOB) data. Does rebuilding also do...


ALTER INDEX REORGANIZE Compacts pages that contain large object (LOB) data. Does rebuilding also do it?

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hi,
ALTER INDEX REORGANIZE Compacts pages that contain large object (LOB) data.
Does rebuilding also do it?

yours sincerely
Jeff Moden
Jeff Moden
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Wow! Great question. Books Online specifically identifies what will occur with LOBs during a REORGANIZE but says nothing specific about LOBs during REBUILDs. It does say that the index is actually dropped and rebuilt and one can infer that will include any LOB information either in the Clustered Index or INCLUDEs of non-Clustered Indexes but, lately, I'm a little gun-shy and I hate to make an assumption like that.

Let's hope that Gail Shaw sees this. She's an MCM and has probably forgotten more about internals like this than most of us will ever learn.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
     Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
Although they tell us that they want it real bad, our primary goal is to ensure that we dont actually give it to them that way.
Although change is inevitable, change for the better is usually not.
Just because you can do something in PowerShell, doesnt mean you should. Wink

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