Databases
Database Analogies
Collected by Daphne Miedema — Lecture Notes
Conceptual modeling
Anything else
(supposed) familiarity of index cards
| Symbol | Concept |
|---|---|
| relational database | filing cabinet |
How each tuple carries its own (independent) set of data
[the relational model]'s really like a collection of index cards (includes a little image of a filing cabinet with an open drawer)
Database table index as a card catalog in a library
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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.
