Impact of TDE on Performance
Microsoft states that enabling TDE usually has a performance overhead of 2–4%. That doesn’t sound like very much, and personally I wouldn’t let it bother me if I want...
2023-05-24 (first published: 2023-05-10)
347 reads
Matthew McGiffen DBA
Errata for my book: Pro Encryption in SQL Server 2022
My biggest fear when my book went into production was that any factual errors had slipped through my checks and the various reviews. I had a lot of reviewer...
2023-03-21
12 reads
Rotating a Certificate Used by TDE
In terms of encryption, Key Rotation is the process of replacing your encryption keys on a periodic basis. This is considered good practice and is required by many security...
2023-02-20 (first published: 2023-02-06)
229 reads
Recovering a TDE Database Without the Certificate
If you don’t have the backups of the certificate and private key from the old server, as well as the password used to encrypt the private key backup then...
2023-02-01
187 reads
Migrating or Recovering a TDE Protected Database
When encrypting a database with Transparent Data Encryption (TDE), a vital consideration is to make sure we are prepared for the scenario where something goes wrong. For instance, if...
2023-01-30
13 reads
Things to look out for while TDE is encrypting existing data
Monitoring for Problems The encryption of your existing data occurs as a background process referred to as the encryption scan, but it will consume resources while it runs, so...
2023-01-27
180 reads
What is calling my T-SQL scalar function (millions of times)?
In this post we look at a method using Extended Events (XE) to identify what parent objects are calling a given SQL function and how often. The background is...
2023-02-01 (first published: 2023-01-23)
451 reads
How Long Will it Take to Encrypt Your Existing Data with TDE?
As we’ve seen in previous posts, the process of turning TDE on for an empty database with no data is instantaneous. Most of the time though you’ll be applying...
2023-01-13
17 reads
The Cost of not Following the Regulations Around Data
Brent Ozar shared in his weekly links this week a GDPR penalty tracker which makes for thought-provoking reading. Regular readers of this blog will know I have a keen...
2023-01-10
14 reads
Securing the Root Keys for TDE
In this quick post we’re going to look at an additional step you should take to secure your TDE databases. This is a step you won’t find in any...
2023-01-09
15 reads
Blogs
Using Data Masker on Chinese Surnames
By Steve Jones
A customer had a question recently on masking Chinese characters. I thought that was...
A New Word: Looseleft
By Steve Jones
looseleft – the feeling of loss upon finishing a good book, sensing the weight...
Using ChatGPT for Writing
By Steve Jones
I have been experimenting more and more with ChatGPT on a regular basis. I’m...
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