Databases
Visual Representation
Collected by Xiaoying Tu — Beaulieu, A. (2009). Learning SQL. 2 ed. O'Reilly.
Query languages (basic)
Math
Visualize basic operations in set theory
| Symbol | Concept |
|---|---|
| circles | sets |
| shaded area | result of the operation |
The result of each basic set operation
Do you have feedback on this notional machine? Did you find a mistake, or do you have a request for improvement? You can create an Issue on GitHub, where the description is hosted. This way we can see your feedback and address it.
For this, you need a GitHub account. Then follow this link to see the source file of this page. In there, click the ... left of the highlighted line, then pick "Reference in a new issue".
A notional machine is a pedagogic device to assist the understanding of some aspect of programs or programming. To something along the lines of A notional machine is a pedagogical tool designed to support the understanding of programs, programming, and other aspects of computing such as databases.
