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Question ID 1534

The PRODUCT table contains these columns:
ID NUMBER(9) PK COST NUMBER(7,2)
SALE_PRICE NUMBER(7,2)
Management has asked you to calculate the net revenue per unit for each product if the cost of each product is increased by 10% and the sale price of each product is increased by 25%.
You issue this SQL statement:
SELECT id, sale_price * 1.25 - cost * 1.10
FROM product;
Which conclusion can you draw from the results?
 

Option A

A.    A function needs to be included in the SELECT statement to achieve the desired results.
 

Option B

B.    The order of the operations in the calculation needs to be changed to achieve the required results.

 

Option C

C.    The results provide more information than management requested.
 

Option D

D.    Only the required results are displayed.

Correct Answer D
Explanation


Question ID 1535

Which statement would you use to add a primary key constraint to the patient table using the id_number column, immediately enabling the constraint?

Option A

A.    ALTER TABLE patient
ADD (id_number CONSTRAINT pat_id_pk PRIMARY KEY);
 

Option B

B.    ALTER TABLE patient
MODIFY (id_number CONSTRAINT pat_id_pk PRIMARY KEY);
 

Option C

C.    This task cannot be accomplished.
 

Option D

D.    ALTER TABLE patient
ADD CONSTRAINT pat_id_pk PRIMARY KEY(id_number);
 

Correct Answer D
Explanation

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