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Recovery Models


Recovery Models

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paul.knibbs
paul.knibbs
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GilaMonster (9/2/2011)
Depends on what kind of disaster, what it damaged and what it left intact.


Would it make a difference if you were able to take a tail log backup of the database in the specified scenario?
Håvard
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Excellent article!
It's perfect for refreshing my memory on this very important subject.
h.tobisch
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I am afraid I was not able to convey the problem I see behind my question: if . as stated by Gail, minimal logging records allcation changes by a minimally logged statement, it would not be possible to reconstruct data this statement puts into already existing allocation units. So I suppose it should read "allocation units affected by the statement".
GilaMonster
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h.tobisch (9/6/2011)
I am afraid I was not able to convey the problem I see behind my question: if . as stated by Gail, minimal logging records allcation changes by a minimally logged statement, it would not be possible to reconstruct data this statement puts into already existing allocation units. So I suppose it should read "allocation units affected by the statement".


But if you read the piece I quoted from BoL, Minimal logging requires that the table is empty or a heap. So only new extents (not allocation units) are affected by a minimally logged insert.

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

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Divine Flame
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Really nice article Gail, to understand the recovery models. Enjoyed it thoroughly :-)


Sujeet Singh
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Indeed a nice article, Gail

Another one to be ref-ed in the fora fairly frequent :-D

Johan


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