Question: Define primary key, foreign key, and metadata. (1 pt) Why does the presence of metadata make databases more useful? (1 pt) Describe entities in the
- Define primary key, foreign key, and metadata. (1 pt)
- Why does the presence of metadata make databases more useful? (1 pt)
- Describe entities in the context of data models. (.5 pt)
- Define virtualization and list its types. (1 pt)
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