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DATA MODELS INTO DATABASE DESIGNS QUIZ

An ideal primary key is short, numeric and seldom changing.

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A primary key should be defined as:

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For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?

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A foreign key is used to implement relationships between tables.

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When the parent entity is required, a new child row can always be inserted.

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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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When the parent entity is required, a new parent row can always be inserted.

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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?

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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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Which of the following columns is(are) are required in a table?

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