EXAMIANS
When the parent entity is required, a new parent row can always be inserted.
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If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value.
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All primary keys are required.
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The DBMS allows surrogate keys to be changed.
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When the child entity is required, we are restricted from creating a new parent row without also creating a corresponding child row at the same time.
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A primary key should be defined as:
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When the parent entity is required and the parent has a surrogate key, update actions can be ignored.
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Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?
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When the parent entity is required, a new child row can always be inserted.
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The terms alternate key and candidate key mean the same thing.
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