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2016 Jul 1z0-047 study material:

Q131. View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables. 


Evaluate the following UPDATE statement: 

UPDATE 

(SELECT order_date, order_total, customer_id 

FROM orders) 

SET order_date = 22-mar-2007' 

WHERE customer_id = (SELECT customer_id FROM customers WHERE cust_last_name = 'Roberts'AND Credit_limit = 600); 

Which statement is true regarding the execution of the above UPDATE statement? 

A. Itwouldnot execute becausetwotables cannot be usedin a single UPDATEstatement. 

B. It wouldexecuteandrestrict modifications toonly thecolumns specifiedin theSELECT statement. 

C. It wouldnotexecute becauseasubquery cannot be used in the WHERE clause ofanUPDATE statement. 

D. Itwould not execute becausetheSELECTstatementcannot be used in place of the table name. 

Answer: B


Q132. View the Exhibit and examine the description of the EMPLOYEES table. 

You want to display the EMPLOYEE_ID, FIRST_NAME, and DEPARTMENT_ID for all the employees who work in the same department and have the same manager as that of the employee having EMPLOYEE_ID 104. To accomplish the task, you execute the following SQL statement: 

SELECT employee_id, first_name, department_id 

FROM employees 

WHERE (manager_id, department_id) =(SELECT department_id, manager_id FROM employees WHERE employee_id = 104) 

AND employee_id <> 104; 


When you execute the statement it does not produce the desired output. What is the reason for this? 

A. The WHERE clause condition in the main query is using the = comparison operator, instead of EXISTS. 

B. The WHERE clause condition in the main query is using the = comparison operator, instead of the IN operator. 

C. The WHERE clause condition in the main query is using the = comparison operator, instead of the = ANY operator. 

D. The columns in the WHERE clause condition of the main query and the columns selected in the subquery should be in the same order. 

Answer: D


Q133. The details of the order ID, order date, order total, and customer ID are obtained from the ORDERS table. If the order value is more than 30000, the details have to be added to the LARGEjDRDERS table. The order ID, order date, and order total should be added to the ORDERJHISTORY table, and order ID and customer ID should be added to the CUSTJHISTORY table. Which multitable INSERT statement would you use? 

A. Pivoting INSERT 

B. Unconditional INSERT 

C. ConditionalALLINSERT 

D. Conditional FIRST INSERT 

Answer: C


Q134. Evaluate the following command: 

CREATE TABLE employees 

(employee_id NUMBER(2) PRIMARY KEY, 

last_name VARCHAR2(25) NOT NULL, 

department_id NUMBER(2), job_id VARCHAR2(8), 

salary NUMBER(10,2)); 

You issue the following command to create a view that displays the IDs and last names of the sales staff in the organization: 

CREATE OR REPLACE VIEW sales_staff_vu AS 

SELECT employee_id, last_name job_id 

FROM employees 

WHERE job_id LIKE 'SA_%' WITH CHECK OPTION; 

Which statements are true regarding the above view? (Choose all that apply.) 

A. It allows you to insert details of allnewstaff into the EMPLOYEES table. 

B. Itallowsyou todeletethedetails of the existing sales staff fromtheEMPLOYEES table. 

C. It allows you to updatethejob ids oftheexisting sales staff to any other job id in the EMPLOYEES table. 

D. It allows you to insert the IDs, last names and job ids of the sales staff from theviewif it is used in multitable INSERT statements. 

Answer: BD


Q135. EMPDET is an external table containing the columns EMPNO and ENAME. Which command would work in relation to the EMPDET table? 

A. UPDATE empdet SET ename ='Amit' WHERE empno = 1234; 

B. DELETE FROM empdet WHERE ename LIKE 'J%' 

C. CREATE VIEWempvu AS SELECT* FROMempdept; 

D. CREATEINDEX empdet_dx ON empdet(empno); 

Answer: C


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Q136. Which two statements best describe the benefits of using the WITH clause? (Choose two.) 

A. It enables users to store the results of a query permanently. 

B. It enables users to store the query block permanently in the memory and use it to create complex queries. 

C. It enables users to reuse the same query block in a SELECT statement, if it occurs more than once in a complex query. 

D. It can improve the performance of a large query by storing the result of a query block having the WITH clause in the user's temporary tablespace. 

Answer: CD


Q137. View the Exhibit and examine the structure of the ORDER_ITEMS and ORDERS tables. 

You are asked to retrieve the ORDER_ID, PRODUCT_ID, and total price (UNIT_PRICE multiplied 

by QUANTITY), where the total price is greater than 50,000. 

You executed the following SQL statement: 

SELECT order_id, product_id, unit_price*quantity "Total Price" FROM order_items WHERE 

unit_price*quantity > 50000 NATURAL JOIN orders; Which statement is true regarding the execution of the statement? 


A. The statement would execute and provide the desired result. 

B. The statement would not execute because the ON keyword is missing in the NATURAL JOIN clause. 

C. The statement would not execute because the WHERE clause is before the NATURAL JOIN clause. 

D. The statement would not execute because the USING keyword is missing in the NATURAL JOIN clause. 

Answer: C


Q138. Which two statements best describe the benefits of using the WITH clause? (Choose two.) 

A. It enables users to store the results of a query permanently. 

B. It enables users to store the query block permanently in the memory and use it to create complex queries. 

C. It enables users to reuse the same query block in a SELECT statement, if it occurs more than once in a complex query. 

D. It can improve the performance of a large query by storing the result of a query block having the WITH clause in the user's temporary tablespace. 

Answer: CD


Q139. Evaluate the following SQL statement: 

SELECT product_name || 'it's not available for order' 

FROM product_information 

WHERE product_status = 'obsolete' 

You received the following error while executing the above query: 

ERROR: 

ORA-01756: quoted string not properly terminated 

What would you do to execute the query successfully? 

A. Enclose the character literal string intheSELECT clause within thedoublequotation marks. 

B. Do not enclosethecharacter literal string in the SELECT clausewithinthesingle quotation marks. 

C. Use Quote (q) operator anddelimiterto allowtheuse of single quotation mark in the literal character string. 

D. Use escape charactertonegatethesingle quotationmarkinside theliteralcharacter string in the SELECT clause. 

Answer: C


Q140. View the Exhibit and examine the description of the ORDER_ITEMS and 

PRODUCT_INFORMATION tables. 

The ORDER_ITEM table has records pertaining to details for each product in an order. The 

PRODUCT_INFORMATION table has records for all the products available for ordering. 

Evaluate the following SOL statement: 

SELECT oi.order_id, pi.product_id 

FROM orderjtems oi RIGHT OUTER JOIN product_information pi 

ON (oi. product_id=pi. Product_id); 

Which statement is true regarding the output of this SOL statement? 



A. The query would return the ORDER_ID and PRODUCT_ID for only those products that are ordered. 

B. The query would return the ORDER_ID and PRODUCT_ID for the products that are ordered as well as for the products that have never been ordered. 

C. The query would return the ORDER_ID and PRODUCT_ID for the products that are ordered but not listed in the PRODUCT_INFORMATION table. 

D. The query would return the ORDER_ID and PRODUCT_ID for those products that are ordered as well as for the products that have never been ordered, and for the products that are not listed in the PRODUCT INFORMATION table. 

Answer: B