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Oracle 1z1-071, also known as the Oracle Database SQL certification exam, is designed to test the knowledge and skills of candidates in the area of SQL. 1z0-071 Exam is intended for individuals who are interested in becoming certified professionals in database management, specifically in the area of SQL.

Oracle Database SQL Sample Questions (Q22-Q27):

NEW QUESTION # 22
Which two statements are true regarding roles? (Choose two.)

A. A user can be granted only one role at any point of time.
B. Roles are named groups of related privileges that can be granted to users or other roles.
C. A role can be granted to PUBLIC.
D. A role can be granted to itself.
E. The REVOKE command can be used to remove privileges but not roles from other users.

Answer: B,C

NEW QUESTION # 23
View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables.
(Choose the best answer.)

You executed this UPDATE statement:
UPDATE
( SELECT order_date, order_total, customer_id FROM orders)
Set order_date = '22-mar-2007'
WHERE customer_id IN
(SELECT customer_id FROM customers
WHERE cust_last_name = 'Roberts' AND credit_limit = 600);
Which statement is true regarding the execution?

A. It would not execute because a subquery cannot be used in the WHERE clause of an UPDATE statement.
B. It would not execute because a SELECT statement cannot be used in place of a table name.
C. It would execute and restrict modifications to the columns specified in the SELECT statement.
D. It would not execute because two tables cannot be referenced in a single UPDATE statement.

Answer: C

NEW QUESTION # 24
View the Exhibit and examine the details of PRODUCT_INFORMATION table.

You have the requirement to display PRODUCT_NAME from the table where the CATEGORY_ID column has values 12 or 13, and the SUPPLIER_ID column has the value 102088. You executed the following SQL statement:
SELECT product_name
FROM product_information
WHERE (category_id = 12 AND category_id = 13) AND supplier_id = 102088;
Which statement is true regarding the execution of the query?

A. It would execute and the output would display the desired result.
B. It would execute but the output would return no rows.
C. It would not execute because the entire WHERE clause condition is not enclosed within the parentheses.
D. It would not execute because the same column has been used in both sides of the AND logical operator to form the condition.

Answer: B

NEW QUESTION # 25
Which three statements are true about GLOBAL TEMPORARY TABLES?

A. GLOBAL TEMPORARY TABLE space allocation occurs at session start.
B. GLOBAL TEMPORARY TABLE rows inserted by a session are available to any other session whose user has been granted select on the table.
C. A DELETE command on a GLOBAL TEMPORARY TABLE cannot be rolled back.
D. Any GLOBAL TEMPORARY TABLE rows existing at session termination will be deleted.
E. A TRUNCATE command issued in a session causes all rows In a GLOBAL TEMPORARY TABLE for the issuing session to be deleted.
F. A GLOBAL TEMPORARY TABLE's definition is available to multiple sessions.

Answer: D,E,F

Explanation:
Global temporary tables (GTTs) in Oracle have unique properties related to session-based visibility and data persistence:
* B. A TRUNCATE command issued in a session causes all rows in a GLOBAL TEMPORARY TABLE for the issuing session to be deleted: True, TRUNCATE is session-specific for GTTs and will remove all rows inserted by the session that issues the TRUNCATE command.
* D. A GLOBAL TEMPORARY TABLE's definition is available to multiple sessions: The structure of a GTT is persistent and shared across sessions, but the data within is session-specific.
* E. Any GLOBAL TEMPORARY TABLE rows existing at session termination will be deleted: The data in GTTs is private for the session, and when the session ends, the data is deleted automatically.
References:
* Oracle Database Concepts and SQL Language Reference 12c, especially the sections on temporary tables.

NEW QUESTION # 26
View the Exhibit and examine the structure of the PRODUCT_INFORMATION table. (Choose the best answer.)

PRODUCT_ID column is the primary key.
You create an index using this command:
SQL > CREATE INDEX upper_name_idx
ON product_information(UPPER(product_name));
No other indexes exist on the PRODUCT_INFORMATION table.
Which query would use the UPPER_NAME_IDX index?

A. SELECT product_id, UPPER(product_name)
FROM product_information
WHERE UPPER(product_name) = 'LASERPRO' OR list_price > 1000;
B. SELECT product_id
FROM product_information
WHERE UPPER(product_name) IN ('LASERPRO', 'CABLE');
C. SELECT UPPER(product_name)
FROM product_information
WHERE product_id = 2254;
D. SELECT UPPER(product_name)
FROM product_information;

Answer: B

NEW QUESTION # 27
......

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