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Data Models into Database Designs

Data Models into Database Designs
Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?

MUST NOT
MUST COVER
Both of the above
None of these

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Data Models into Database Designs
When transforming an entity-relationship model into a relational database design, each entity is represented as a table.

True
False

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Data Models into Database Designs
When the parent entity is required, cascading updates and cascading deletions should be allowed or the associated actions on the parent should be prohibited.

False
True

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Data Models into Database Designs
For every relationship, how many possible sets of minimum cardinalities are there?

Two
Six
Four
Three

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Data Models into Database Designs
Which of the following column properties would be used to specify that cells in a column must be immediately filled with a monetary value of $10,000?

Default value
Data type
Null status
Data constraints

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Data Models into Database Designs
Intersection tables are ID-dependent on both their parent tables.

False
True

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