A primary key should be defined as: Options: A . &nbspNone of these B . &nbspEither of the above can be used. C . &nbspNULL. D . &nbspNOT NULL.

A primary key should be defined as:

Question

A primary key should be defined as:

Options:

A . None of these

B . Either of the above can be used.

C . NULL.

D . NOT NULL.

Answer: Option D

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Question 1. Which of the following column properties would be used to specify that cells in a column must contain a monetary value?....that cells in a column must contain a monetary value?

Question 2. Which of the following column properties specifies whether or not cells in a column must contain a data value?....

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Question 4. In a 1:1 relationship, the foreign key is placed in:....

Question 5. A foreign key is:....

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Question 8. Which of the following columns is(are) are required in a table?....

Question 9. The identifier of an entity will become the ________ of the new table.....

Question 10. Which is not true about surrogate keys?....

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