Free Access Oracle.1z0-071.v2025-03-22.q314 Practice Test (Page 61)

Question 296

View the exhibit and examine the structure of ORDERSand CUSTOMERStables.

Which INSERT statement should be used to add a row into the ORDERStable for the customer whose CUST_LAST_NAMEis Robertsand CREDIT_LIMITis 600? Assume there exists only one row with CUST_LAST_NAME as Roberts and CREDIT_LIMIT as 600.
INSERT INTO (SELECT o.order_id, o.order_date, o.order_mode, c.customer_id,

A.o.order_total
FROM orders o, customers c
WHERE o.customer_id = c.customer_id AND c.cust_last_name='Roberts' AND
c.credit_limit=600)
VALUES (1,'10-mar-2007', 'direct', (SELECT customer_id
FROM customers
WHERE cust_last_name='Roberts' AND credit_limit=600), 1000);
INSERT INTO orders (order_id, order_date, order_mode,

B.(SELECT customer_id
FROM customers
WHERE cust_last_name='Roberts' AND credit_limit=600), order_total)
VALUES (1,'10-mar-2007', 'direct', &customer_id, 1000);
INSERT INTO orders

C.VALUES (1,'10-mar-2007', 'direct',
(SELECT customer_id
FROM customers
WHERE cust_last_name='Roberts' AND credit_limit=600), 1000);
INSERT INTO orders (order_id, order_date, order_mode,

D.(SELECT customer_id
FROM customers
WHERE cust_last_name='Roberts' AND credit_limit=600), order_total)
VALUES (1,'10-mar-2007', 'direct', &&customer_id, 1000);

Question 297

Which statement is true about TRUNCATE and DELETE?

A.You can never tows from a table if foreign key constraints will be violated.

B.You can never TRUNCATE a table if foreign key constraints will be violated.

C.For tables with multiple indexes and triggers is faster than TRUNCATE.

D.For large tables TRUNCATE is faster than DELETE.

Question 298

Examine the description of EMPLOYEES table:
Which three queries return all rows for which SALARY+COMMISSION is greate than 20000?

A.SELECT * FROM employees WHERE salary+NULLF(commission,0)>=20000;

B.SELECT * FROM employees WHERE salary+NVL2(commission,commission,0)>=20000;

C.SELECT * FROM employees WHERE NVL2(salary)+commission,salary+commission,

D.SELECT * FROM employees WHERE salary+NVL(commission,0)>=20000;

E.SELECT * FROM employees WHERE NVL(salary+commission,0)>=20000;

F.SELECT * FROM employees WHERE NVL(salary+commission,0)>==20000;

Question 299

Which two are true about rollbacks?

A.The ROLLBACK statement does not release locks resulting from table updates.

B.Data Control L anguage (DCL) statements, such as GRANT and REVOKE, can be rolled back.

C.A transaction interrupted by a system failure is automatically rolled back.

D.If the ROLLBACK statement is used without TO SAVEPOINT, then all savepoints in the transaction are deleted .

E.Data consistency is not guaranteed after a rollback.

Question 300

The first DROP operation is performed on PRODUCTS table using the following command:
DROP TABLE products PURGE;
Then you performed the FLASHBACK operation by using the following command:
FLASHBACK TABLE products TO BEFORE DROP;
Which statement describes the outcome of the FLASHBACK command?

A.It recovers the table structure, data, and the indexes.

B.It is not possible to recover the table structure, data, or the related indexes.

C.It recovers only the table structure.

D.It recovers the table structure and data but not the related indexes.

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Question 296

Question 297

Question 298

Question 299

Question 300

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