Free Access Oracle.1z0-071.v2025-03-22.q314 Practice Test (Page 3)

Question 6

What is true about non-equijoin statement performance?

A.The between condition always performs less well than using the >= and <= conditions.

B.The Oracle join syntax performs better than the SQL: 1999 compliant ANSI join syntax.

C.The join syntax used makes no difference to performance.

D.The between condition always performs better than using the >= and <= conditions.

E.Table aliases can improve performance.

Question 7

View the Exhibit and examine the structure of CUSTOMERS table.
Using the CUSTOMERS table, 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 NVL(cust_credit_limit * .15), 'Not Available') "NEW CREDIT"FROM customers;

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

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

Question 8

View the exhibit and examine the ORDERStable.
ORDERS
Null? Type
Name
ORDER ID NOT NULL NUMBER(4)
ORDATE DATE DATE
CUSTOMER ID NUMBER(3)
ORDER TOTAL NUMBER(7,2)
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
ADD CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);

B.ALTER TABLE orders
ADD customer_id NUMBER(6)CONSTRAINT orders_cust_id_nn NOT NULL;

C.ALTER TABLE orders
MODIFY customer_id CONSTRAINT orders_cust_nn NOT NULL (customer_id);

D.ALTER TABLE orders
MODIFY CONSTRAINT orders_cust_id_nn NOT NULL (customer_id);

Question 9

You have the privileges to create any type of synonym.
Which stalement will create a synonym called EMP for the HCM.EMPLOYEE_RECORDS table that is accesible to all users?

A.CREATE GLOBAL SYNONYM emp FOR hcm.employee_records;

B.CREATE SYNONYM emp FOR hcm.employee_records;

C.CREATE SYNONYM PUBLIC.emp FOR hcm.employee_records;

D.CREATE SYNONYM SYS.emp FOR hcm.employee_records;

E.CREATE PUBLIC SYNONYM emp FOR hcm. employee_records;

Question 10

Examine the description of the EMPLOYEES table:

NLS_DATE FORMAT is DD-MON-RR.
Which two queries will execute successfully?

A.SELECT dept id, MAX (SUM(salary)) FROM employees GROUP BY dept_id;

B.SELECT dept_ id, AVG (MAX(salary)) FROM employees GROUP By dept_id HAVING hire_date> ' O1-JAN-19';

C.SELECT dept_ iD, sum(salary) FROM employees WHERE hire_date > '01-JAN-9' GROUP BY dept_id;

D.SELECT AVG(MAX(salary)) FROM employees GROUP BY salary;

E.SELECT dept_ id, AVG(MAX(salary)) FROM employees GROUP BY dept_id, salary;

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