Database model

There are three levels of data modeling, conceptual data model, logical data model, and physical data mode. Feature Conceptual Logical Physical Entity Names ✓ ✓   Entity Relationships ✓ ✓   Attributes /Column   ✓   Primary Keys    ✓ ✓ Foreign Keys    ✓ ✓ Table Names       ✓ Column Names       ✓ …

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