Technology LearningCheat Sheet
DATABASECHEAT SHEETS
SHEET 01
Database Design and ER Diagrams
M.R. Sterling
Database Intro · Sheet 01
Database Design and ER DiagramsSQLite
How a design becomes a database: crow's foot diagrams, entities and keys, one to one, one to many and many to many, and must or may. Each rule is shown with SQLite enforcing it.
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Two A4 pagesprint front and back
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What is on this sheet
Reading a crow's foot diagram
Diagram words
An entity becomes a table
One to many, many to many
One to one
Keys
Must or may
Attributes and entities
Six marks of good data
The books this sheet pairs with
The sheet reminds you. These books teach it, one idea at a time, with every example worked.
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