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Related Content: CS403 - VU Lectures, Handouts, PPT Slides, Assignments, Quizzes, Papers & Books of Database Management Systems

Overview of Lecture

• Introduction to Views
• Views, Data Independence, Security
• Choosing a Vertical and Horizontal Subset of a Table
• A View Using Two Tables
• A View of a View
• A View Using a Function
• Updates on Views

Views

Views are generally used to focus, simplify, and customize the perception each user has of the database. Views can be used as security mechanisms by allowing users to access data through the view, without granting the users permissions to directly access the underlying base tables of the view.

Read more: CS403 - Database Management Systems - Lecture Handout 39

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Related Content: CS605 - VU Lectures, Handouts, PPT Slides, Assignments, Quizzes, Papers & Books of Software Engineering II

Poka-Yoke (Mistake-Proofing)

Poka-yoke is a QA technique developed by Shingo at Toyota in 1960’s. Poka-yoke devices are mechanisms that lead to prevention of potential quality problem before it occurs or the rapid detection of quality problems if they are introduced.

• Examples:
  • Light on if the car door is not properly closed
  • Warning beep if the engine is turned-off when lights are on
  
  

  Read more: CS605 - Software Engineering II - Lecture Handout 32