Online Access Free Oracle.1z0-071.v2022-02-07.q334 Practice Test (Page 28)

1z0-071 Exam Question 131

Which two statements are true about the ORDER BY clause?

A.NULLS are not included in the sort operation.

B.Numeric values are displayed in descending order if they have decimal positions.

C.Ina character sort, the values are case-sensitive.

D.Column aliases can be used In the ORDER BY cause.

E.Only columns that are specified in the SELECT list can be used in the ORDER BY cause.

1z0-071 Exam Question 132

Examine the command:

What does ON DELETE CASCADE Imply?

A.When a value in the BOOKS.BOOK_ID column is deleted, the corresponding value is updated in the books transactions. BOOK_ID column.

B.When a row in the books table is deleted, the rows in the BOOK__TRANSACTIONS table whose BOOK_ID matches that of the deleted row in the books table are also deleted.

C.When the books table is dropped, all the rows in the BOOK_TRANSACTIONS table are deleted but the table structure is retained.

D.When the books table is dropped, the BOOK_TRANSACTIONS table is dropped.

1z0-071 Exam Question 133

In which three situations does a transaction complete?

A.when a PL/SQL anonymous block is executed

B.when a DELETE statement is executed

C.when a ROLLBACK command is executed

D.when a data definition language (DDL) statement is executed

E.when a TRUNCATE statement is executed after the pending transaction

1z0-071 Exam Question 134

Examine the description or the CUSTOMERS table:

For Customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?

A.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers
WHERE cust_income_level != NULL AND cust_credit_level != NULL;

B.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers
WHERE cust_income_level IS NOT NULL AND cust_credit_limit IS NOT NULL;

C.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers
WHERE cust_income_level IS NOT NULL AND due_amount IS NOT NULL;

D.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers
WHERE cust_income_level != NULL AND due_amount != NULL;

E.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers
WHERE cust_income_level <> NULL AND due_amount <> NULL;

1z0-071 Exam Question 135

You need to display the first names of all customers from the CUSTOMERStable that contain the character 'e' and have the character 'a' in the second last position.
Which query would give the required output?
SELECT cust_first_name

A.FROM customers
WHERE INSTR(cust_first_name, 'e')<>0 AND
SUBSTR(cust_first_name, -2, 1)='a';
SELECT cust_first_name

B.FROM customers
WHERE INSTR(cust_first_name, 'e')<>'' AND
SUBSTR(cust_first_name, -2, 1)='a';
SELECT cust_first_name

C.FROM customers
WHERE INSTR(cust_first_name, 'e')IS NOT NULL AND
SUBSTR(cust_first_name, 1, -2)='a';
SELECT cust_first_name

D.FROM customers
WHERE INSTR(cust_first_name, 'e')<>0 AND
SUBSTR(cust_first_name, LENGTH(cust_first_name), -2)='a';

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1z0-071 Exam Question 131

1z0-071 Exam Question 132

1z0-071 Exam Question 133

1z0-071 Exam Question 134

1z0-071 Exam Question 135

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