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Relational Database Design and Implementation, 3rd Edition by Jan L. Harrington

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Chapter 15. Database Security
In our current computing environment, we usually think that the instant world-spanning access provided by the Internet is a good thing. However, that access has a dark side: those who would inadvertently or purposefully violate the security of our data. Security has always been a part of relational database management, but now it has become one of the most important issues facing database administrators.
Another way to look at security is to consider the difference between security and privacy. Privacy is the need to restrict access to data, whether it be trade secrets or personal information that by law must be kept private. Security is what you do to ensure privacy.
Many people view network security as having three ...

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