This course consists of a survey of the key principles of security labels and markings, an overview of data models to support a labeling approach to row- and column-level security, and specific considerations for implementing a row- and/or column-level security model within the Microsoft SQL Server framework. The course also features an in-depth live demonstration of the architecture and principles at work. We begin with trying to establish a clear functional definition of row-level security, and an examination of real-world contexts which either demand or benefit from such a model. We then discuss the various kinds of requirements that can impact level of complexity of a particular solution. This leads us into developing a database model that supports the standard superset of likely use-cases. We’ll start with the simplest possible implementation and then discuss the addition of layers of complexity such as the classic “Top Secret / Confidential / Classified / UnClassified” hierarchies, and other approaches to access. Finally, we’ll connect to a live Microsoft SQL Server database with many of these principles implemented, and conduct several tests and demonstrations which illustrate how to implement the principles.