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The 1Z0-071 Certification Exam is an Oracle Certification. It covers understanding and managing relational databases, designing and developing database models, administering databases, developing SQL statements to extract information from DBMS tables for reporting purposes, etc.
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Oracle Database SQL Sample Questions (Q130-Q135):
NEW QUESTION # 130
Examine these statements which execute successfully:
Both statements display departments ordered by their average salaries.
Which two are true?
- A. Only the second statement will execute successfully if you add E.AVG_SAL to the select list.
- B. Only the second statement will display departments with no employees.
- C. Both statements will display departments with no employees.
- D. Both statements will execute successfully If you add E.AVG_SAL. to the select list.
- E. Only the first statement will execute successfully if you add E.AVG_SAL to the select list.
- F. Only the first statement will display departments with no employees.
Answer: A,C
NEW QUESTION # 131
Examine the structure of the INVOICEtable.
Which two SQL statements would execute successfully?
SELECT inv_no, NVL2(inv_date, 'Pending', 'Incomplete')
- A. FROM invoice;
- B. FROM invoice;
SELECT inv_no, NVL2(inv_date, sysdate-inv_date, sysdate) - C. FROM invoice;
SELECT inv_no, NVL2(inv_amt, inv_date, 'Not Available') - D. FROM invoice;
SELECT inv_no, NVL2(inv_amt, inv_amt*.25, 'Not Available')
Answer: C,D
NEW QUESTION # 132
Table EMPLOYEES contains columns including EMPLOYEE_ID, JOB_ID and SALARY.
Only the EMPLOYEE_ID column is indexed.
Rows exist for employees 100 and 200.
Examine this statement:
Which two statements are true? (Choose two.)
- A. Employees 100 and 200 will have the same SALARY as before the update command
- B. Employee 100 will have SALARY set to the same value as the SALARY of employee 200
- C. Employee 200 will have SALARY set to the same value as the SALARY of employee 100
- D. Employees 100 will have JOB_ID set to the same value as the JOB_ID of employee 200
- E. Employees 100 and 200 will have the same JOB_ID as before the update command
- F. Employee 200 will have JOB_ID set to the same value as the JOB_ID of employee 100
Answer: B,D
NEW QUESTION # 133
Which statement is true regarding the USINGclause in table joins? (Choose two.)
- A. It can be used to access data from tables through equijoins as well as nonequijoins.
- B. It can be used to join tables that have columns with the same name and compatible data types.
- C. It can be used to join a maximum of three tables.
- D. It can be used to restrict the number of columns used in a NATURALjoin.
Answer: B,D
NEW QUESTION # 134
View the Exhibit and examine the structure of the ORDER_ITEMStable.
Examine the following SQL statement:
SELECT order_id, product_id, unit_price
FROM order_items
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. Remove the GROUP BY clause from the subquery and place it in the main query
- B. Replace = with the >ALL operator
- C. Replace = with the IN operator
- D. Replace = with the >ANY operator
Answer: C
NEW QUESTION # 135
......
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