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Q11. View the Exhibit and examine the description of EMPLOYEES and DEPARTMENTS tables.
You want to display the EMPLOYEE_ID, LAST_NAME, and SALARY for the employees who get the maximum salary in their respective departments. The following SQL statement was written:
WITH
SELECT employee_id, last_name, salary
FROM employees
WHERE (department_id, salary) = ANY (SELECT*
FROM dept_max)
dept_max as (SELECT d.department_id, max(salary)
FROM departments d JOIN employees j
ON (d. department_id = j. department_id)
GROUP BY d. department_id);
Which statement is true regarding the execution and the output of this statement?
A. The statementwouldexecute and give the desired results.
B. Thestatement wouldnotexecute becausethe= ANY comparison operator is used instead of=.
C. Thestatement wouldnot execute because themain queryblock usesthequery name beforeitis even created.
D. The statement wouldnot execute because the commaismissing betweenthemain query block and the query name.
Answer: C
Q12. View the Exhibit and examine the structure of the ORDERS table. The ORDER_ID column is the
PRIMARY KEY in the ORDERS table.
Evaluate the following CREATE TABLE command:
CREATE TABLE new_orders(ord_id, ord_date DEFAULT SYSDATE, cus_id)
AS
SELECT order_id.order_date,customer_id
FROM orders;
Which statement is true regarding the above command?
A. The NEW_IDRDERS table would not get created because the DEFAULT value can not be specified in the column definition.
B. The NEW_IDRDERS table would get created and only the NOTNULL constraint defined on the specified columns would be passed to the new table.
C. The NEW_IDRDERS table would not get created because the column names in the CREATE TABLE commandand the SELECT clause do not match.
D. The NEW_IDRDERS table would get created and all the constraints defined on the specified columns in the ORDERS table would be passed to the new table.
Answer: B
Q13. Which two statements are true about sequences created in a single instance database? (Choose two.)
A. The numbers generated by a sequence can be used only for one table.
B. DELETE <sequencename> would remove a sequence from the database.
C. CURRVAL is used to refer to the last sequence number that has been generated.
D. When the MAXVALUE limit for a sequence is reached, you can increase the MAXVALUE limit by using the ALTER SEQUENCE statement.
E. When a database instance shuts down abnormally, the sequence numbers that have been cached but not used would be available once again when the database instance is restarted.
Answer: CD
Q14. Which statement is true regarding synonyms?
A. Synonyms can be created for tables but not views.
B. Synonyms are used to reference only those tables that are owned by another user.
C. A public synonym and a private synonym can exist with the same name for the same table.
D. The DROP SYNONYM statement removes the synonym, and the status of the table on which the synonym has been created becomes invalid.
Answer: C
Q15. Evaluate the following CREATE TABLE command:
CREATE TABLE order_item (order_id NUMBER(3),
Item_id NUMBER(2),
qty NUMBER(4),
CONSTRAINT ord_itm_id_pk
PRIMARY KEY (order_id jtem_id)
USING INDEX
(CREATE INDEX ord_itm_idx
ON order_item(order_id item_id)));
Which statement is true regarding the above SOL statement?
A. Itwould execute successfullyandonly ORD_ITM_IDX index would be created.
B. It would give an error because the USING INDEX clause cannot be used onacomposite primarykey.
C. It wouldexecutesuccessfully and two indexes ORD_ITM_IDXand ORD_ITM_ID_PKwould becreated.
D. Itwould give an error becausetheUSING INDEX clause isnotpermitted in the CREATETABLEcommand.
Answer: A
Q16. View the Exhibit and examine the structure of the EMPLOYEES table.
You want to display all employees and their managers having 100 as the MANAGER_ID. You want the output in two columns: the first column would have the LAST_NAME of the managers and the second column would have LAST_NAME of the employees.
Which SQL statement would you execute?
A. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
ON m.employee_id = e.manager_id
WHERE m.manager_id=100;
B. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
ON m.employee_id = e.manager_id
WHERE e.managerjd=100;
C. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
ON e.employee_id = m.manager_id
WHERE m.manager_id=100;
D. SELECT m.last_name "Manager", e.last_name "Employee"
FROM employees m JOIN employees e
WHERE m.employee_id = e.manager_id AND e.managerjd=100;
Answer: B
Q17. View the Exhibit and examine the data in EMPLOYEES and
DEPARTMENTS tables. In the EMPLOYEES table EMPLOYEE_ID is the PRIMARY KEY and DEPARTMENT_ID is the FOREIGN KEY. In the DEPARTMENTS table DEPARTMENT_ID is the PRIMARY KEY.
Evaluate the following UPDATE statement:
UPDATE employees a
SET department_jd =
(SELECT department_id
FROM departments
WHERE location_id = ‘2100’),
(salary, commission_pct) =
(SELECT 1.1*AVG(salary), 1.5*AVG(commission_pct)
FROM employees b
WHERE a. department_jd = b. department_id)
WHERE first_name|| '||last_name = 'Amit Banda'
What would be the outcome of the above statement?
A. Itwould execute successfullyandupdate therelevant data.
B. It would not execute successfully because there isno LOCATION_ID2100 in theDEPARTMENTStable.
C. It wouldnotexecute successfully because the condition specified with the concatenation operator is not valid.
D. Itwould not execute successfully becausemultiplecolumns (SALARY,COMMISSION_PCT)cannot be used in an UPDATE statement.
Answer: A
Q18. View the Exhibit and examine the structure of the ORDER_ITEMS table.
You need to display the ORDER_ID of the order that has the highest total value among all the orders in the ORDER_ITEMS table.
Which query would produce the desired output?
A. SELECT order_id FROM order_items
WHERE(unit_price*quantity) = MAX(unit_price*quantity) GROUP BY order_id;
B. SELECT order_id FROM order_items
WHERE(unit_price*quantity) = (SELECT MAX(unit_price*quantity) FROM order_items) GROUP
BY order_id;
C. SELECT order_id FROM order_items
WHERE (unit_price*quantity) = (SELECT MAX(unit_price*quantity) FROM order_items GROUP
BY order_id);
D. SELECT order_id FROM order_items GROUP BY order_id
HAVING SUM(unit_price*quantity) =(SELECT MAX(SUM(unit_price*quantity)jFROM order_items
GROUP BY order_id);
Answer: D
Q19. Given below is a list of functions and their purpose in random order.
Function Purpose 1)NVL a) Used for evaluating NOT NULL and NULL values 2)NULLIF b) Used to return the first non- null values in a list of expressions 3)COALESCE c) Used
to compare two expressions. If both are same, it returns NULL; otherwise, it returns only the first expression.
4)NVL2 d) Used to convert NULL values to actual values
Identify the correct combination of functions and their usage.
A. 1-a,2-c,3-b,4-d
B. 1-d,2-c,3-b,4-a
C. 1-b,2-c,3-d,4-a
D. 1-d,2-b,3-c,4-a
Answer: B
Q20. Given below is a list of datetime data types and examples of values stored in them in a random order:
Datatype Example
1) INTERVAL YEAR TO MONTH a) 2003-04-15 8:00:00 -8:00'
2) TIMESTAMP WITH LOCAL TIME ZONE b) '-K)6 03:30:16.000000'
3) TIMESTAMP WITH TIME ZONE c) '17-JUN-03 12.00.00.000000 AM'4)INTERVAL DAY TO
SECOND d) '402-00'
Identify the option that correctly matches the data types with the values.
A. 1-d.2-c.3-a.4-b
B. 1-b.2-a.3-c.4-d
C. 1-b.2-a,3-d,4-c
D. 1-d.2-c.3-b.4-a
Answer: A
