SQL for Data Science
What is data modelling?
Data modelling is what we use to organize
information for multiple tables and how they relate to each other together.
Data modelling is what we use to organize
information for multiple tables and how they relate to each other together.
Evolution of Data Models:
Data Model Building Blocks
ER Diagrams
Primary and Foreign Key
ER Diagram Notation
Chan Notation
Crow's Foot Notation
URL Class Diagram Notation
Chan Notation
Crow's Foot Notation
URL Class Diagram Notation
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