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Q17. Which two statements are true regarding the execution of the correlated subqueries? (Choose two.)
A. The nested query executes after the outer query returns the row.
B. The nested query executes first and then the outer query executes.
C. The outer query executes only once for the result returned by the inner query.
D. Each row returned by the outer query is evaluated for the results returned by the inner query.
Answer: AD
Q18. View the Exhibit and examine the structure of the ORDER_ITEMS table. Examine the following SQL statement:
SELECT order_id, product_id, unit_price FROM order_jtems WHERE unit_price = (SELECT MAX(unit_price) FROM order_items GROUP BY order_id);
You want to display the PRODUCT_ID of the product that has the highest UNIT_PRICE per ORDER_ID.
What correction should be made in the above SQL statement to achieve this?
A. Replace = with theINoperator.
B. Replace = withthe >ANYoperator.
C. Replace = with the>ALLoperator.
D. Remove the GROUP BY clause from the subquery and placeitin the main query.
Answer: A
Q19. Given below is a list of functions and the tasks performed by using these functions, in random order.
Function Usage
1) LPAD a) Used to truncate a column, expression, or value to n decimal places 2) TRUNC b) Used to remove heading or trailing or both characters from the character string 3) DECODE c) Pads the character value right-justified to a total width of n character positions 4) TRIM d) Used to return the numeric value for position of a named character from the character string 5) INSTR e) Used to translate an expression after comparing it with each search value
Which option correctly matches the function names with their usage?
A. 1-c,2-b,3-e,4-a,5-d
B. 1-e,2-b,3-c,4-a,5-d
C. 1-e,2-a,3-c,4-d,5-b
D. 1-c,2-a,3-e,4-b,5-d
Answer: D
Q20. The ORDERS table belongs to the user OE. OE has granted the SELECT privilege on the ORDERS table to the user HR. Which statement would create a synonym ORD so that HR can execute the following query successfully? SELECT'FROM ord;
A. CREATE SYNONYM ord FOR orders; This command is issuedbyOE.
B. CREATEPUBLIC SYNONYM ordFORorders; This command is issued by OE.
C. CREATESYNONYM ord FOR oe.orders; This command isissuedby thedatabaseadministrator.
D. CREATE PUBLIC SYNONYM ord FOR oe.orders;Thiscommand is issued by the database administrator.
Answer: D
Q21. View the Exhibit and examine the description of the PRODUCT_INFORMATION table.
You want to display the expiration date of the warranty for a product. Which SQL statement would you execute?
A. SELECT product_id, SYSDATE + warranty_period FROM product_information;
B. SELECT product_id, TO_YMINTERVAL(warranty_period) FROM product_information;
C. SELECT product_id, TO_YMINTERVAL(SYSDATE) + warranty_period FROM product_information;
D. SELECT product_id, TO_YMINTERVAL(SYSDATE + warranty_period) FROM product_information;
Answer: A
Q22. View the Exhibit and examine the structure for the ORDERS and ORDER_ITEMS tables.
You want to display ORDER_ID, PRODUCT_ID, and TOTAL (UNIT_PRICE multiplied by QUANTITY) for all the orders placed in the last seven days.
Which query would you execute?
A. SELECT orde_id, product_id, unit_price*quantity "TOTAL"
FROM order_items oi JOIN orders o
ON (o.order_id=oi. order_id)
WHERE o.order_date>=SYSDATE-7;
B. SELECT o.order_id,oi.product_id, oi.unit_price*oi.quantity "TOTAL"
FROM order_items oi JOIN orders o
USING (order_id)
WHERE o.order_date>=SYSDATE-7;
C. SELECT o.order_id, oi.product_id, oi.unit_price*oi.quantity "TOTAL"
FROM order_items oi JOIN orders o
WHERE o.order_date>=SYSDATE-7 ON (o.order_id=oi. order_id);
D. SELECT o.order_id, oi.product_id, oi.unit_price*oi.quantity "TOTAL"
FROM orde_items oi JOIN orders o
ON (o.order_id=oi. order_id)
WHERE o. order date>=SYSDATE-7;
Answer: D
Q23. View the Exhibit and examine the details of the PRODUCT_INFORMATION table.
You have the requirement to display PRODUCT_NAME and LIST_PRICE from the table where the CATEGORYJD column has values 12 or 13, and the SUPPLIER_ID column has the value 102088. You executed the following SQL statement:
SELECT product_name, list_price
FROM product_information
WHERE (category_id = 12 AND category_id = 13) AND supplier_id = 102088;
Which statement is true regarding the execution of the query?
A. Itwould executebut theoutput would return no rows.
B. It would execute and the outputwould displaythedesired result.
C. It wouldnotexecute because the entireWHEREclause conditionisnot enclosedwithinthe parentheses.
D. Itwould not execute becausethesame column has been used in both sidesoftheANDlogical operatortoform the condition.
Answer: A
Q24. 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