Free Access Oracle.1z0-071.v2022-09-21.q298 Practice Test (Page 7)

Question 26

Evaluate the following statement.

Which statement is true regarding the evaluation of rows returned by the subquery in the INSERT statement?

A.They are evaluated by all the three WHEN clauses regardless of the results of the evaluation of any other WHEN clause.

B.They are evaluated by the first WHEN clause. If the condition is true, then the row would be evaluated by the subsequent WHEN clauses.

C.They are evaluated by the first WHEN clause. If the condition is false, then the row would be evaluated by the subsequent WHEN clauses.

D.The insert statement would give an error because the ELSE clause is not present for support in case none of WHEN clauses are true.

Question 27

Evaluate the following SQL statement
SQL>SELECT promo_id, prom _category FROM promotions
WHERE promo_category='Internet' ORDER BY promo_id
UNION
SELECT promo_id, promo_category FROM Pomotions
WHERE promo_category = 'TV'
UNION
SELECT promoid, promocategory FROM promotions WHERE promo category='Radio'
Which statement is true regarding the outcome of the above query?

A.It executes successfully and displays rows in the descend ignore of PROMO CATEGORY.

B.It produces an error because positional, notation cannot be used in the ORDER BY clause with SBT operators.

C.It executes successfully but ignores the ORDER BY clause because it is not located at the end of the compound statement.

D.It produces an error because the ORDER BY clause should appear only at the end of a compound query-that is, with the last SELECT statement.

Question 28

View the Exhibits and examine the structure of the costs and promotions tables.
You want to display prod_ids whose promotion cost is less than the highest cost PR0D_ID in a promotion time interval.
Examine this SQL statement:

What will be the result?

A.It gives an error because the ROUP BY clause is not valid.

B.It executes successfully and gives the required result.

C.It gives an error because the all keyword is not valid.

D.It executes successfully but does not give the required result.

Question 29

View the Exhibit and examine the structure of CUSTOMERStable.
Using the CUSTOMERStable, you need to generate a report that shows an increase in the credit limit by
15% for all customers. Customers whose credit limit has not been entered should have the message "Not Available" displayed.
Which SQL statement would produce the required result?

A.SELECT NVL (TO CHAR(cust_credit_limit * .15), 'Not Available') "NEW CREDIT" FROM customers;

B.SELECT TO_CHAR (NVL(cust_credit_limit * .15), 'Not Available') "NEW CREDIT" FROM customers;

C.SELECT NVL(cust_credit_limit * .15), 'Not Available') "NEW CREDIT"
FROM customers;

D.SELECT NVL(cust_credit_limit), 'Not Available') "NEW CREDIT"
FROM customers;

Question 30

Sales data of a company is stored in two tables, SALES1and SALES2, with some data being duplicated across the tables. You want to display the results from the SALES1table, which are not present in the SALES2table.

Which set operator generates the required output?

A.INTERSECT

B.UNION

C.PLUS

D.MINUS

E.SUBTRACT

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Question 26

Question 27

Question 28

Question 29

Question 30

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