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Question ID 1718

Evaluate this SQL statement:
e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales_amount * (.35 * e.bonus)) AS CALC_VALUE FROM employees e, sales s
WHERE e.employee_id = s.emp_id;
What will happen if you remove all the parentheses from the calculation?
 

Option A

A.    The value displayed in the CALC_VALUE column will be higher.
 

Option B

B.    There will be no difference in the value displayed in the CALC_VALUE column.
 

Option C

C.    The value displayed in the CALC_VALUE column will be lower.

 

Option D

D.    An error will be reported.

Correct Answer B
Explanation


Question ID 1719

The CUSTOMERS table has these columns:
CUSTOMER_ID NUMBER(4) NOT NULL
CUSTOMER_NAME VARCHAR2(100) NOT NULL
CUSTOMER_ADDRESS VARCHAR2(150) CUSTOMER_PHONE VARCHAR2(20)
You need to produce output that states "Dear Customer customer_name, ". The customer_name data values come from the CUSTOMER_NAME column in the CUSTOMERS table. Which statement produces this output?
 

Option A

A.    SELECT 'Dear Customer ' || customer_name || ',' FROM customers;
 

Option B

B.    SELECT 'Dear Customer ' || customer_name ',' FROM customers;
 

Option C

C.    SELECT "Dear Customer " || customer_name || "," FROM customers;
 

Option D

D.    SELECT 'Dear Customer ' || customer_name || ',' || FROM customers;

 

Option E

E.    SELECT dear customer, customer_name, FROM customers;
 

Option F

F.    SELECT "Dear Customer", customer_name || ',' FROM customers;

Correct Answer A
Explanation

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