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Oracle Database SQL Sample Questions (Q376-Q381):

NEW QUESTION # 376
Examine the structure of the MEMBERStable.
Name Null? Type
- --------------- ----------------- ---------------------------
MEMBER_ID NOT NULL VARCHAR2 (6)
FIRST_NAME VARCHAR2 (50)
LAST_NAME NOT NULL VARCHAR2 (50)
ADDRESS VARCHAR2 (50)
CITY VARCHAR2 (25)
STATE NOT NULL VARCHAR2 (3)
Which query can be used to display the last names and city names only for members from the states MO and MI?

A. SELECT last_name, city FROM members WHERE state LIKE 'M%';
B. SELECT DISTINCT last_name, city FROM members WHERE state ='MO' OR state
='MI';
C. SELECT last_name, city FROM members WHERE state IN ('MO', 'MI');
D. SELECT last_name, city FROM members WHERE state ='MO' AND state ='MI';

Answer: C

NEW QUESTION # 377
Which two actions can you perform with object privileges?

A. Execute a procedure or function in another schema.
B. Create FOREIGN KEY constraints that reference tables in other schemas.
C. Create roles.
D. Delete rows from tables in any schema except sys.
E. Set default and temporary tablespaces for a user.

Answer: B,D

NEW QUESTION # 378
Which two queries execute successfully?

A. SELECT COALESCE(100, 'A' ) FROM DUAL;
B. SELECT COALESCE(100, NULL, 200) FROM DUAL;
C. SELECT NULLIF(100, 100) FROM DUAL;
D. SELECT NULLIF(100, 'A') FROM DUAL;
E. SELECT NULLIF(NULL, 100) FROM DUAL;

Answer: B,C

NEW QUESTION # 379
Examine the structure of the MEMBERS table: (Choose the best answer.)

Examine the SQL statement:
SQL > SELECT city, last_name LNAME FROM MEMBERS ORDER BY 1, LNAME DESC; What would be the result execution?

A. It displays all cities in ascending order, within which the last names are further sorted in descending order.
B. It displays all cities in descending order, within which the last names are further sorted in descending order.
C. It fails because a column number and a column alias cannot be used together in the ORDER BY clause.
D. It fails because a column alias cannot be used in the ORDER BY clause.

Answer: A

NEW QUESTION # 380
Which two statements are true about sequences created in a single instance Oracle database? (Choose two.)

A. When a database instance shuts down abnormally, the sequence numbers that have been cached but not used are available again when the instance is restarted
B. The numbers generated by an explicitly defined sequence can only be used to insert data in one table.
C. When the MAXVALUElimit for the sequence is reached, it can be increased by using the ALTER SEQUENCEstatement.
D. CURRVALis used to refer to the most recent sequence number that has been generated for a particular sequence.
E. DELETE <sequencename>would remove a sequence from the database.

Answer: C,D

Explanation:
Explanation/Reference:
References:
http://docs.oracle.com/cd/E11882_01/server.112/e41084/statements_2012.htm#SQLRF00817
https://docs.oracle.com/cd/A84870_01/doc/server.816/a76989/ch26.htm

NEW QUESTION # 381
......

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