Online Access Free Oracle.1z0-071.v2024-08-26.q188 Practice Test (Page 19)

1z0-071 Exam Question 86

Which two statements are true about INTERVAL data types?

A.INTERVAL DAY TO SECOND columns support fractions of seconds.

B.The YEAR field in an INTERVAL YEAR TO MONTH column must be a positive value.

C.INTERVAL YEAR TO MONTH columns only support monthly intervals within a range of years.

D.INTERVAL YEAR TO MONTH columns only support monthly intervals within a single year.

E.The value in an INTERVAL DAY TO SECOND column can be copied into an INTERVAL YEAR TO MONTH column.

F.INTERVAL YEAR TO MONTH columns support yearly intervals.

1z0-071 Exam Question 87

Evaluate the following two queries:
SQL> SELECT cust_last_name, cust_city
FROM customers
WHERE cust_credit_limit IN (1000, 2000, 3000);
SQL> SELECT cust_last_name, cust_city
FROM customers
WHERE cust_credit_limit = 1000 or cust_credit_limit = 2000 or
cust_credit_limit = 3000
Which statement is true regarding the above two queries?

A.Performance would improve in query 2 only if there are null values in the CUST_CREDIT_LIMIT column.

B.There would be no change in performance.

C.Performance would degrade in query 2.

D.Performance would improve in query 2.

1z0-071 Exam Question 88

Examine this SQL statement:

Which two are true? (Choose two.)

A.The subquery is not a correlated subquery.

B.The DELETE statement executes successfully even if the subquery selects multiple rows.

C.The subquery is executed before the DELETEstatement is executed.

D.All existing rows in the EMPLOYEEStable are deleted.

E.The subquery is executed for every row in the EMPLOYEEStable.

1z0-071 Exam Question 89

View the exhibit and examine the structure 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 views successfully?

A.CREATE OR REPLACE VIEW ord_vuAS SELECT o.order_id, o.order_date, COUNT (i.line_item_id) ||"NO OF ITEMS"FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_dateWHITH CHECK OPTION;

B.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 iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_date;

C.CREATE OR REPLACE VIEW ord_vuAS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)"NO OF ITEMS"FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_date;

D.CREATE OR REPLACE VIEW ord_vuAS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_date;

1z0-071 Exam Question 90

Which two statements are true about the results of using the INTERSECToperator in compound queries?
(Choose two.)

A.INTERSECTreturns rows common to both sides of the compound query.

B.The number of columns in each SELECTin the compound query can be different.

C.INTERSECTignores NULLs.

D.Reversing the order of the intersected tables can sometimes affect the output.

E.Column names in each SELECTin the compound query can be different.

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1z0-071 Exam Question 86

1z0-071 Exam Question 87

1z0-071 Exam Question 88

1z0-071 Exam Question 89

1z0-071 Exam Question 90

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