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Quiz 1z0-071 - Oracle Database SQL–Valid Reliable Exam Topics

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Oracle Database SQL Sample Questions (Q224-Q229):

NEW QUESTION # 224
Which three statements about roles are true?

A. A single role can be assigned to multiple users.
B. Privileges are assigned to a role using the ALTER ROLE statement.
C. Privileges are assigned to a role using the GRANT statement.
D. Roles are assigned to users using the ALTER USER statement
E. Roles are assigned to roles using the ALTER ROLE Statement
F. A role is a named group of related privileges that can only be assigned to a user
G. A single user can be assigned multiple roles

Answer: A,C,G

Explanation:
Roles are named collections of privileges in Oracle databases.
A . False. Roles cannot be assigned to other roles using the ALTER ROLE statement.
B . False. Roles can be assigned to both users and other roles.
C . True. Roles are assigned to users using the ALTER USER statement, but this is not the only method.
D . True. A single role can be assigned to multiple users, simplifying the management of user privileges.
E . True. A single user can be assigned multiple roles.
F . False. Privileges are not assigned to a role using the ALTER ROLE statement.
G . True. Privileges are assigned to a role using the GRANT statement.
Reference:
Oracle Documentation on User Privileges and Roles: https://docs.oracle.com/database/121/DBSEG/authorization.htm#DBSEG99914

NEW QUESTION # 225
View the exhibit and examine the data in ORDERS_MASTER and MONTHLY_ORDERS tables.

Evaluate the following MERGE statement:
MERGE_INTO orders_master o
USING monthly_orders m
ON (o.order_id = m.order_id)
WHEN MATCHED THEN
UPDATE SET o.order_total = m.order_total
DELETE WHERE (m.order_total IS NULL)
WHEN NOT MATCHED THEN
INSERT VALUES (m.order_id, m.order_total);
What would be the outcome of the above statement?

A. The ORDERS_MASTER table would contain the ORDER_IDs 1, 2 and 3.
B. The ORDERS_MASTER table would contain the ORDER_IDs 1, 2 and 4.
C. The ORDERS_MASTER table would contain the ORDER_IDs 1 and 2.
D. The ORDERS_MASTER table would contain the ORDER_IDs 1, 2, 3 and 4.

Answer: B

Explanation:
https://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_9016.htm

NEW QUESTION # 226
Examine these statements:

Which two are true? (Choose two.)

A. The MGRcolumn in the DEPTtable will not be able to contain NULLvalues.
B. Both foreign key constraint definitions must be removed from the CREATE TABLE statements, and be added with ALTER TABLEstatements once both tables are created, for the two CREATE TABLE statements to execute successfully in the order shown.
C. The CREATE TABLE EMPstatement must precede the CREATE TABLE DEPTstatement for all three statements to execute successfully.
D. The DEPT_FKEYconstraint definition must be removed from the CREATE TABLE DEPT statement, and be added with an ALTER TABLEstatement once both tables are created, for the two CREATE TABLE statements to execute successfully in the order shown.
E. The DEPTNOcolumn in the EMPtable will be able to contain NULLvalues.
F. All three statements execute successfully in the order shown.

Answer: B,E

NEW QUESTION # 227
The EMPLOYEES table contains columns EMP_ID of data type NUMBER and HIRE_DATE of data type DATE You want to display the date of the first Monday after the completion of six months since hiring.
The NLS_TERRITORY parameter is set to AMERICA in the session and, therefore, Sunday is the first day of the week Which query can be used?

A. SELECT emp_id,ADD_MONTHS(hire_date,6), NEXT_DAY('MONDAY') FROM employees;
B. SELECT emp_id,NEXT_DAY(MONTHS_BETWEEN(hire_date,SYSDATE),6) FROM employees;
C. SELECT emp_id,NEXT_DAY(ADD_MONTHS(hite_date,6),'MONDAY') FROM employees;
D. SELECT emp_id,NEXT_DAY(ADD_MONTHS(hire_date,6),1) FROM employees;

Answer: C

Explanation:
The function ADD_MONTHS(hire_date, 6) adds 6 months to the hire_date. The function NEXT_DAY(date, 'day_name') finds the date of the first specified day_name after the date given. In this case, 'MONDAY' is used to find the date of the first Monday after the hire_date plus 6 months.
Option A is correct as it accurately composes both ADD_MONTHS and NEXT_DAY functions to fulfill the requirement.
Options B, C, and D do not provide a valid use of the NEXT_DAY function, either because of incorrect syntax or incorrect logic in calculating the required date.
The Oracle Database SQL Language Reference for 12c specifies how these date functions should be used.

NEW QUESTION # 228
Choose two
Examine the description of the PRODUCT DETALS table:

A. PRODUCT_NAME cannot contain duplicate values.
B. EXPIRY_DATE cannot be used in arithmetic expressions.
C. PRODUCT_ID can be assigned the PEIMARY KEY constraint.
D. PRODUCT_PRICE can be used in an arithmetic expression even if it has no value stored in it
E. PRODUCT_PRICE contains the value zero by default if no value is assigned to it.
F. EXPIRY_DATE contains the SYSDATE by default if no date is assigned to it

Answer: C,D

NEW QUESTION # 229
......

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