EXAMIANS
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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Which of the following columns is(are) are required in a table?
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For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?
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All primary keys are required.
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A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):
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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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In a 1:1 relationship, the primary key placement is arbitrary.
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A foreign key is used to implement relationships between tables.
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Surrogate keys have much meaning for users.
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The identifier of an entity will become the ________ of the new table.
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