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Preparation Resources

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Oracle Database SQL Sample Questions (Q383-Q388):

NEW QUESTION # 383
Table EMPLOYEEScontains columns including EMPLOYEE_ID, JOB_ID and SALARY.
Only the EMPLOYEE_ID column is indexed.
Rows exist for employees 100 and 200.
Examine this statement:

Which two statements are true? (Choose two.)

A. Employee 200will have SALARYset to the same value as the SALARYof employee 100
B. Employees 100 and 200will have the same JOB_ID as before the update command
C. Employees 100will have JOB_ID set to the same value as the JOB_ID of employee 200
D. Employee 200 will have JOB_ID set to the same value as the JOB_ID of employee 100
E. Employee 100will have SALARYset to the same value as the SALARYof employee 200
F. Employees 100and 200 will have the same SALARYas before the update command

Answer: B,C

NEW QUESTION # 384
View the exhibit and examine the ORDERStable.

The ORDERStable contains data and all orders have been assigned a customer ID. Which statement would add a NOTNULLconstraint to the CUSTOMER_IDcolumn?

A. ALTER TABLE orders
MODIFY customer_id CONSTRAINT orders_cust_nn NOT NULL (customer_id);
B. ALTER TABLE orders
ADD CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);
C. ALTER TABLE orders
ADD customer_id NUMBER(6)CONSTRAINT orders_cust_id_nn NOT NULL;
D. ALTER TABLE orders
MODIFY CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);

Answer: A

NEW QUESTION # 385
The EMPLOYEES table contains columns EMP_IDof data type NUMBERand HIRE_DATEof data type DATE.
You want to display the date of the first Monday after the completion of six months since hiring.
The NLS_TERRITORYparameter is set to AMERICAin the session and, therefore, Sunday is the first day of the week.
Which query can be used?
SELECT emp_id, NEXT_DAY(MONTHS_BETWEEN(hire_date, SYSDATE), 6) FROM employees;

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

Answer: B

Explanation:
Explanation/Reference: http://www.dba-oracle.com/t_add_months.htm

NEW QUESTION # 386
Which statement will return a comma-separated list of employee names in alphabetical order for each department in the EMP table?

A. Select deptno. no LISTAGG(ename, ',') WITHIN GROUP (GROUP BY deptno) AS employee-list FROM emp ORDER BY emp
B. Select deptno. no LISTAGG(ename, ',') WITHIN GROUP(ORDER BY ename) AS employee-list FROM emp ORDER BY emp
C. Select deptno. LISTAGG(ename, ',') WITHIN GROUP AS employee-list
FROM emp
GROUP BY emp
D. Select deptno. LISTAGG(ename, ',') WITHIN GROUP AS employee-list
FROM emp
ORDER BY ename;

Answer: B

NEW QUESTION # 387
You execute the following commands:

For which substitution variables are you prompted for the input?

A. Both the substitution variables 'hiredate' and 'mgr_id\
B. None, because no input required
C. Only 'mgr_id'
D. Only 'hiredate'

Answer: A

NEW QUESTION # 388
......

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Preparation Resources

Oracle Database SQL Sample Questions (Q383-Q388):

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