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ER Diagram., DBMS - Coggle Diagram
ER Diagram.
Key(Impotent Attributes).
Super Key
Candidate Key
Primary Key
Alternate Key
candidate-primary
Partial Key
Attributes
Simple or Composite(has child value)
Single, Multi Value(list of value).
Derived( Calculate from another).
Relationship
One-to-One
One-to-Many, Many-to-One
Many-to-Many
Entity
It is "Data Set"
Has multiple Attributes.
DBMS
DDL
ER Diagram.
DML