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Microsoft SQL Server

Dynamic Data Masking (DDM) – Mask query results

Enforcement of the new GDPR will begin in May 2018. One of the cornerstones in GDPR is that an organization must be able to protect sensitive personal information. This can be achieved in many ways and at many different levels, from infrastructure (e.g. monitoring traffic) to protecting individual database records. To protect individual data records, some different techniques are available. Examples are encryption and masking. Masking can be done in a permanent way (e.g. actually replacing a name with random characters), or it can be done dynamically (not replacing the original data, but to mask information at query time). SQL Server 2016 ships with a capability to do this dynamic data masking, DDM, and in this article I’ll cover the basics.


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