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Transparent database encryption
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Transparent database encryption
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GilaMonster
GilaMonster
Posted Monday, July 04, 2011 11:13 PM
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Comments posted to this topic are about the item
Transparent database encryption
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
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 #1136215
mohammed moinudheen
mohammed moinudheen
Posted Monday, July 04, 2011 11:38 PM
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Thank you Gail, this was tough. Not like last week's question
.
Mohammed Moinudheen
Post #1136217
ako58
ako58
Posted Tuesday, July 05, 2011 1:46 AM
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ms-help://MS.SQLCC.v10/MS.SQLSVR.v10.en/s10de_4deptrbl/html/c75d0d4b-4008-4e71-9a9d-cee2a566bd3b.htm
The pages in an encrypted database are encrypted before they are written to disk and decrypted when read into memory
Post #1136254
DugyC
DugyC
Posted Tuesday, July 05, 2011 2:13 AM
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ako58 (7/5/2011)
ms-help://MS.SQLCC.v10/MS.SQLSVR.v10.en/s10de_4deptrbl/html/c75d0d4b-4008-4e71-9a9d-cee2a566bd3b.htm
The pages in an encrypted database are encrypted before they are written to disk and decrypted when read into memory
That's right, for new writes, but when encryption is set the entire database is encrypted immediately using an asynchronous background thread.
_____________________________________________________________________
"The difficult tasks we do immediately, the impossible takes a little longer"
Post #1136262
paul s-306273
paul s-306273
Posted Tuesday, July 05, 2011 2:16 AM
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I'd have thought you can just reason this through to get to the correct answer.
Nice question Gail.
Post #1136264
DugyC
DugyC
Posted Tuesday, July 05, 2011 2:18 AM
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Great question. For me, I couldn't decide between the background task running after the ALTER DATABASE command completed or immediately, before the ALTER DATABASE completed, as the background thread is asynchronous and I wasn't sure if the ALTER DATABASE had other work to do after it kicked the thread off.
Fortunately, I chose correctly
_____________________________________________________________________
"The difficult tasks we do immediately, the impossible takes a little longer"
Post #1136265
GilaMonster
GilaMonster
Posted Tuesday, July 05, 2011 2:35 AM
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mohammed moinudheen (7/4/2011)
Thank you Gail, this was tough. Not like last week's question
.
See, that was just a warmup.
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
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 #1136271
rfr.ferrari
rfr.ferrari
Posted Tuesday, July 05, 2011 5:41 AM
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very good, question!!!!
thanks Gail!!!!
rfr.ferrari
DBA
- SQL Server
2008
MCITP | MCTS
remember is live or suffer twice!
Post #1136384
Kiara
Kiara
Posted Tuesday, July 05, 2011 5:46 AM
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Nice question - thanks!
-Ki
Post #1136391
sburcombe
sburcombe
Posted Tuesday, July 05, 2011 8:25 AM
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Good question!
Simone
Post #1136515
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