CHAPTER 13

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SQL Views and System Security

Two very powerful and important features of SQL are the facility to create and manage logical views, and the capability to manage security issues of a database. This chapter discusses these two related issues. The chapter proceeds under the following subtopics:

  • Traditional Logical Views
  • System Security
  • Materialized Views
  • Summary and Concluding Remarks

13.1 Traditional Logical Views

As pointed out in Chapter 3, a logical view is a virtual relation that allows end users to access information in a manner that is consistent with their requirements. Any creditable DBMS will allow the creation and manipulation ...

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