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Database Midterm 2/55 by Mind Map: Database Midterm 2/55
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Database Midterm 2/55

ER

Entity

Attribute

Relation

Problem

EER

superclass

subclass

Spaecialization(Top-down)

Generalization(Base-up)

Disjointness Constrint

Completeness Constrint

Mapping-ER

1.Regular Entity

2.Weak Entity

3.Binary 1:1 Relation

4.Binary 1:N Relation

5.Binary M:N Relation

6.Multivalue Attribute

7.N-ary Ralation

8.Specialization or Generalization

9.Union Type

Normalization

UNF

1NF

2NF

3NF

BCNF

4NF

FD

Full FD

Partial Dependency

Transitive Dependency