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1Z1-047 PDF DEMO:

QUESTION NO: 1
Which two statements are true regarding views? (Choose two.)
A. A simple view in which column aliases have been used cannot be updated.
B. A subquery used in a complex view definition cannot contain group functions or joins.
C. Rows cannot be deleted through a view if the view definition contains the DISTINCT keyword.
D. Rows added through a view are deleted from the table automatically when the view is dropped.
E. The OR REPLACE option is used to change the definition of an existing view without dropping and re-creating it.
F. The WITH CHECK OPTION constraint can be used in a view definition to restrict the columns displayed through the view.
Answer: CE

QUESTION NO: 2
View the Exhibit and examine the description of the EMPLOYEES table.
Your company decided to give a monthly bonus of $50 to all the employees who have completed five years in the company. The following statement is written to display the LAST_NAME, DEPARTMENT_ID, and the total annual salary:
When you execute the statement, the "Annual Compensation" is not computed correctly. What changes would you make to the query to calculate the annual compensation correctly?
A. Change the SELECT clause to SELECT last_name, department_id, salary*12+50 "Annual
Compensation".
B. Change the SELECT clause to SELECT last_name, department_id, salary+(50*12) "Annual
Compensation".
C. Change the SELECT clause to SELECT last_name, department_id, (salary+50)*12 "Annual
Compensation".
D. Change the SELECT clause to SELECT last_name, department_id, (salary*12)+50 "Annual
Compensation".
Answer: C

QUESTION NO: 3
View the Exhibit and examine the data in ORDERS and ORDER_ITEMS tables.
You need to create a view that displays the ORDER ID, ORDER_DATE, and the total number of items in each order.
Which CREATE VIEW statement would create the view successfully?
A. CREATE OR REPLACE VIEW ord_vu (order_id,order_date)
AS SELECT o.order_id, o.order_date, COUNT(i.line_item_id)
"NO OF ITEMS"
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id,o.order_date;
B. CREATE OR REPLACE VIEW ord_vu
AS SELECT o.order_id, o.order_date, COUNT(i.line_item_id)
"NO OF ITEMS"
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id,o.order_date;
C. CREATE OR REPLACE VIEW ord_vu
AS SELECT o.order_id, o.order_date, COUNT(i.line_item_id)
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id,o.order_date;
D. CREATE OR REPLACE VIEW ord_vu
AS SELECT o.order_id, o.order_date, COUNT(i.line_item_id)||' NO OF ITEMS'
FROM orders o JOIN order_items i
ON (o.order_id = i.order_id)
GROUP BY o.order_id,o.order_date
WITH CHECK OPTION;
Answer: B

QUESTION NO: 4
Evaluate the following SQL statement:
What would you do to execute the query successfully?
A. Enclose the character literal string in the SELECT clause within the double quotation marks.
B. Do not enclose the character literal string in the SELECT clause within the single quotation marks.
C. Use Quote (q) operator and delimiter to allow the use of single quotation mark in the literal character string.
D. Use escape character to negate the single quotation mark inside the literal character string in the
SELECT clause.
Answer: C

QUESTION NO: 5
View the Exhibit and examine the description of the EMPLOYEES table.
Your company wants to give 5% bonus to all the employees on their annual salary. The SALARY column stores the monthly salary for an employee. To check the total for annual salary and bonus amount for each employee, you issued the following SQL statement:
Which statement is true regarding the above query?
A. It would execute and give you the desired output.
B. It would not execute because the AS keyword is missing between the column name and the alias.
C. It would not execute because double quotation marks are used instead of single quotation marks for assigning alias for the third column.
D. It would execute but the result for the third column would be inaccurate because the parentheses for overriding the precedence of the operator are missing.
Answer: A

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Updated: May 26, 2022