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Oracle 1z0-071 exam, also known as the Oracle Database SQL exam, is a certification exam offered by Oracle Corporation. It is designed to test the knowledge and skills of SQL developers, database administrators, and database analysts who work with Oracle databases. Passing 1z0-071 Exam is a requirement for earning the Oracle Database SQL Certified Associate certification.

Oracle Database SQL Sample Questions (Q318-Q323):

NEW QUESTION # 318
Which two statements are true about the DUAL table?

A. It can display multiple rows but only a single column.
B. It consists of a single row and single column of VARCHAR2 data type.
C. It can be accessed by any user who has the SELECT privilege in any schema
D. It can display multiple rows and columns.
E. It can be used to display only constants or pseudo columns.
F. It can be accessed only by the SYS user.

Answer: C,D

NEW QUESTION # 319
View the exhibit and examine the structure of the STORES table.

You must display the NAME of stores along with the ADDRESS, START_DATE, PROPERTY_PRICE, and the projected property price, which is 115% of property price.
The stores displayed must have START_DATE in the range of 36 months starting from 01-Jan-2000 and above.
Which SQL statement would get the desired output?

A. SELECT name, concat(address||', '||city||', ', country) AS full_address, start_date,property_price, property_price*115/100FROM storesWHERE MONTHS_BETWEEN(start_date,TO_DATE('01-JAN-2000','DD-MON-RRRR')) <=36;
B. SELECT name, address||', '||city||', '||country AS full_address, start_date,property_price, property_price*115/100FROM storesWHERE MONTHS_BETWEEN(start_date,TO_DATE('01-JAN-2000','DD-MON-RRRR')) <=36;
C. SELECT name, concat(address||', '||city||', ',country) AS full_address, start_date,property_price, property_price*115/100FROM storesWHERE TO_NUMBER(start_date-TO_DATE('01-JAN-2000','DD-MON-RRRR')) <=36;
D. SELECT name, concat(address||', '||city||', ',country) AS full_address, start_date, property_price, property_price*115/100FROM storesWHERE MONTHS_BETWEEN(start_date,'01-JAN-2000') <=36;

Answer: A

NEW QUESTION # 320
Which statement is true about TRUNCATE and DELETE?

A. You can never DELETE rows 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 DELETE is faster than TRUNCATE.
D. For large tables TRUNCATE is faster than DELETE.

Answer: D

NEW QUESTION # 321
Which three statements are true about sequences in a single instance Oracle database?

A. Two or more tables cannot have keys generated from the same sequence.
B. A sequence number that was allocated can be rolled back if a transaction fails.
C. A sequence's unallocated cached values are lost if the instance shuts down.
D. A sequence can issue duplicate values.
E. Sequences can always have gaps.
F. A sequence can only be dropped by a DBA.

Answer: B,C,E

Explanation:
Sequences are database objects used to generate unique numeric identifiers. Here's the correct understanding of sequences in Oracle:
* A: Correct. Cached sequence values that are not yet used are lost if the database instance shuts down, as the cache is held in memory.
* B: Incorrect. The same sequence can be used to generate keys for more than one table. There is no such limitation.
* C: Correct. If a transaction using a sequence number is rolled back, the sequence number that was used or allocated is not reused.
* D: Incorrect. By their nature and configuration, sequences are designed to avoid issuing duplicate values unless explicitly designed to cycle.
* E: Correct. Sequences may have gaps, which can occur due to caching, sequence increment settings, or if a transaction using a sequence number is rolled back.
* F: Incorrect. A sequence can be dropped by any user with adequate privileges, not just a DBA.

NEW QUESTION # 322
You execute these commands:
CREATE TABLE customers (customer id INTEGER, customer name VARCHAR2 (20));
INSERT INTO customers VALUES (1,'Custmoer1 ');
SAVEPOINT post insert;
INSERT INTO customers VALUES (2, 'Customer2 ');
<TODO>
SELECTCOUNT (*) FROM customers;
Which two, used independently, can replace <TODO> so the query retums 1?

A. ROLLBACK;
B. CONOIT TO SAVEPOINT post_ insert;
C. ROLIBACK TO SAVEPOINT post_ insert;
D. ROLLEBACK TO post_ insert;
E. COMMIT;

Answer: C,D

NEW QUESTION # 323
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