[May 2016] 1z0-047 oracle database sql expert study guide pdf

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Exam Code: 1z0-047 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Oracle Database SQL Expert
Certification Provider: Oracle
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2016 May 1z0-047 Study Guide Questions:

Q161. View the Exhibit and examine the structure of ORDER_ITEMS and ORDERS tables. 

You need to remove from the ORDER_ITEMS table those rows that have an order status of 0 or 1 in the ORDERS table. 


Which DELETE statements are valid? (Choose all that apply.) 

A. DELETE FROM order_items WHERE order_id IN (SELECT order_id FROM orders WHERE order_status in (0,1)); 

B. DELETE * FROM order_items WHERE order_id IN (SELECT order_id FROM orders WHERE order_status IN (0,1)); 

C. DELETE FROM order_items i WHERE order_id = (SELECT order_id FROM orders o WHERE i. order_id = o. order_id AND order_status IN (0,1)); 

D. DELETE FROM (SELECT* FROM order_items i.orders o WHERE i.order_id = o.order_id AND order_status IN (0,1)); 

Answer: ACD


Q162. Which statement correctly grants a system privilege? 

A. GRANT EXECUTE ON prod TO PUBLIC; 

B. GRANT CREATE VIEW ON tablel TO used; 

C. GRANT CREATE TABLE TO used ,user2; 

D. GRANT CREATE SESSION TO ALL; 

Answer: C


Q163. View the Exhibit and examine the data in the DEPARTMENTS tables. 


Evaluate the following SQL statement: 

SELECT department_id "DEPT_ID", department_name , 'b' FROM departments WHERE department_id=90 UNION SELECT department_id, department_name DEPT_NAME, 'a' FROM departments WHERE department_id=10 

Which two ORDER BY clauses can be used to sort the output of the above statement? (Choose two.) 

A. ORDERBY 3; 

B. ORDER BY 'b' 

C. ORDER BY DEPT_ID; 

D. ORDER BY DEPT NAME; 

Answer: AC


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Q164. Which two statements are true regarding operators used with subqueries? (Choose two. 

A. The NOT IN operator is equivalent to IS NULL 

B. The <ANY operator means less than the maximum. 

C. =ANY and =ALL operators have the same functionality. 

D. The IN operator cannot be used in single-row subqueries. 

E. TheNOT operator can be used with IN, ANY and ALL operators. 

Answer: BE


Q165. Which two statements are true regarding operators used with subqueries? (Choose two. 

A. The NOT IN operator is equivalent to IS NULL 

B. The <ANY operator means less than the maximum. 

C. =ANY and =ALL operators have the same functionality. 

D. The IN operator cannot be used in single-row subqueries. 

E. TheNOT operator can be used with IN, ANY and ALL operators. 

Answer: BE


Q166. The user SCOTT who is the owner of ORDERS and ORDERJTEMS tables issues the following GRANT command: 

GRANT ALL ON orders, order_items TO PUBLIC; 

What correction needs to be done to the above statement? 

A. PUBLICshould bereplacedwithspecific usernames. 

B. ALL should be replaced with a list of specific privileges. 

C. WITH GRANTOPTIONshould beaddedto the statement. 

D. Separate GRANT statements are required for ORDERSandORDERJTEMS tables. 

Answer: D


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Q167. Which statement is true regarding Flashback Version Query? 

A. It returns versions of rows only within a transaction. 

B. It can be used in subqueries contained only in a SELECT statement. 

C. It will return an error if the undo retention time is less than the lower bound time or SCN specified. 

D. It retrieves all versions including the deleted as well as subsequently reinserted versions of the rows. 

Answer: D


Q168. In which scenario would you use the ROLLUP operator for expression or columns within a GROUP BY clause? 

A. to find the groups forming the subtotal in a row 

B. to create group-wise grand totals for the groups specified within a GROUP BY clause 

C. to create a grouping for expressions or columns specified within a GROUP BY clause in one direction, from right to left for calculating the subtotals 

D. to create a grouping for expressions or columns specified within a GROUP BY clause in all possible directions, which is cross-tabular report for calculating the subtotals 

Answer: C


Q169. Which SQL statement would display the view names and definitions of all the views owned by you? 

A. SELECTviewjiame, text FROM user_view; 

B. SELECTviewjiame, text FROM user_object; 

C. SELECTviewjiame, text FROM user_objects; 

D. SELECTview_name, text FROM user views; 

Answer: D


Q170. View the Exhibit and examine the data in the LOCATIONS table. 


Evaluate the following SOL statement: 

SELECT street_address 

FROM locations 

WHERE 

REGEXP_INSTR(street_address,'[^[: alpha:]]’) = 1; 

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

A. It would displayallthe street addresses thatdo nothaveasubstring 'alpha'. 

B. It would displayallthestreetaddresseswhere the first character isaspecial character. 

C. It would display allthe streetaddresses wherethefirst character is aletterofthealphabet. 

D. It would displayall thestreet addresses where the first character isnota letter of the alphabet. 

Answer: D



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