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Your Partner of IT Exam                                                            http://www.exambible.co.uk/
 
 
 
 
 
Oracle 1Z0-047: 
Oracle Database SQL Expert 
Version :  
Demo 
 
 
 
 
 
 
 
 
 
 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
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Your Partner of IT Exam                                                            http://www.exambible.co.uk/
1. You need to load information about new customers from the NEW_CUST table into the tables CUST 
and CUST_SPECIAL. If a new customer has a credit limit greater than 10,000, then the details have to 
be inserted into CUST_SPECIAL. All new customer details have to be inserted into the CUST table. 
Which technique should be used to load the data most efficiently? 
A. external table 
B. the MERGE command 
C. the multitable INSERT command 
D. INSERT using WITH CHECK OPTION 
Answer: C 
 
2. View the Exhibit and examine the description of the CUSTOMERS table. 
You want to add a constraint on the CUST_FIRST_NAME column of the CUSTOMERS table so that the 
value inserted in the column does not have numbers. 
Which SQL statement would you use to accomplish the task? 
 
A. ALTER TABLE CUSTOMERS 
ADD CONSTRAINT cust_f_name 
CHECK(REGEXP_LIKE(cust_first_name,'^AZ')) 
NOVALIDATE ; 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
B. ALTER TABLE CUSTOMERS 
ADD CONSTRAINT cust_f_name 
CHECK(REGEXP_LIKE(cust_first_name,'^[09]')) 
NOVALIDATE ; 
C. ALTER TABLE CUSTOMERS 
ADD CONSTRAINT cust_f_name 
CHECK(REGEXP_LIKE(cust_first_name,'[[:alpha:]]'))NOVALIDATE ; 
D. ALTER TABLE CUSTOMERS 
ADD CONSTRAINT cust_f_name 
CHECK(REGEXP_LIKE(cust_first_name,'[[:digit:]]'))NOVALIDATE ; 
Answer: C 
 
3. Which three tasks can be performed using regular expression support in Oracle Database 10g? 
(Choose three.) 
A. It can be used to concatenate two strings. 
B. It can be used to find out the total length of the string. 
C. It can be used for string manipulation and searching operations. 
D. It can be used to format the output for a column or expression having string data. 
E. It can be used to find and replace operations for a column or expression having string data. 
Answer: CDE 
 
4. View the Exhibit and examine the structure of the EMP table which is not partitioned and not an 
Indexorganized table. 
Evaluate the following SQL statement: 
ALTER TABLE emp 
DROP COLUMN first_name; 
Which two statements are true regarding the above command? (Choose two.) 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/ 
 
A. The FIRST_NAME column would be dropped provided it does not contain any data. 
B. The FIRST_NAME column would be dropped provided at least one or more columns remain in the 
table. 
C. The FIRST_NAME column can be rolled back provided the SET UNUSED option is added to the 
above SQL statement. 
D. The FIRST_NAME column can be dropped even if it is part of a composite PRIMARY KEY provided 
the CASCADE option is used. 
Answer: BD 
 
5. Evaluate the CREATE TABLE statement: 
CREATE TABLE products 
(product_id NUMBER(6) CONSTRAINT prod_id_pk PRIMARY KEY, 
product_name VARCHAR2(15)); 
Which statement is true regarding the PROD_ID_PK constraint? 
A. It would be created only if a unique index is manually created first. 
B. It would be created and would use an automatically created unique index. 
C. It would be created and would use an automatically created nonunique index. 
D. It would be created and remains in a disabled state because no index is specified in the command. 
Answer: B 
 
6. Which two statements are true? (Choose two.) 
A. The USER_SYNONYMS view can provide information about private synonyms. 
B. The user SYSTEM owns all the base tables and useraccessible views of the data dictionary. 
C. All the dynamic performance views prefixed with V$ are accessible to all the database users. 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
D. The USER_OBJECTS view can provide information about the tables and views created by the user 
only. 
E. DICTIONARY is a view that contains the names of all the data dictionary views that the user can 
access. 
Answer: AE 
 
7. View the Exhibit and examine the description of the ORDERS table. 
Which two WHERE clause conditions demonstrate the correct usage of conversion functions? (Choose 
two.) 
 
A. WHERE order_date > TO_DATE('JUL 10 2006','MON DD YYYY') 
B. WHERE TO_CHAR(order_date,'MON DD YYYY') = 'JAN 20 2003' 
C. WHERE order_date > TO_CHAR(ADD_MONTHS(SYSDATE,6),'MON DD YYYY') 
D. WHERE order_date IN ( TO_DATE('Oct 21 2003','Mon DD YYYY'), TO_CHAR('NOV 21 2003','Mon 
DD YYYY') ) 
Answer: AB 
 
8. View the Exhibit and examine the description of the EMPLOYEES table. 
Your company decided to give a monthly bonus of $50 to all the employees who have completed five 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
years in the company. The following statement is written to display the LAST_NAME, DEPARTMENT_ID, 
and the total annual salary: 
SELECT last_name, department_id, salary+50*12 "Annual Compensation" 
FROM employees 
WHERE MONTHS_BETWEEN(SYSDATE, hire_date)/12 >= 5; 
When you execute the statement, the "Annual Compensation" is not computed correctly. What changes 
would you make to the query to calculate the annual compensation correctly? 
 
A. Change the SELECT clause to SELECT last_name, department_id, salary*12+50 "Annual 
ECT last_name, department_id, salary+(50*12) "Annual 
_name, department_id, (salary+50)*12 "Annual 
_name, department_id, (salary*12)+50 "Annual 
on". 
wer: C 
ATE SEQUENCE statement: 
Compensation". 
B. Change the SELECT clause to SEL
Compensation". 
C. Change the SELECT clause to SELECT last
Compensation". 
D. Change the SELECT clause to SELECT last
Compensati
Ans
 
9. Evaluate the following CRE
CREATE SEQUENCE seq1 
START WITH 100 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
INCREMENT BY 10 
UE 200 
Q1 has generated numbers up to the maximum limit of 200. You issue the following 
 is displayed by the SELECT statement? 
nswer: A 
oyees 
aving 
xecute the following SQL statement: 
id, first_name, department_id 
WHERE (manager_id, department_id) =(SEL
, manager_id 
WHERE employee_id = 104) 
When you execute the statement it does not produce the desired output. What is the reason for this? 
MAXVAL
CYCLE 
NOCACHE; 
The sequence SE
SQL statement: 
SELECT seq1.nextval FROM dual; 
What
A. 1 
B. 10 
C. 100 
D. an error 
A
 
10. 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 empl
who work in the same department and have the same manager as that of the employee h
EMPLOYEE_ID 104. To accomplish the task, you e
SELECT employee_
FROM employees 
ECT department_id
FROM employees 
AND employee_id <> 104; 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/ 
 
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 
 
11. View the Exhibit and examine the descriptions of ORDER_ITEMS and ORDERS tables. 
You want to display the CUSTOMER_ID, PRODUCT_ID, and total (UNIT_PRICE multiplied by 
QUANTITY) for the order placed. You also want to display the subtotals for a CUSTOMER_ID as well as 
for a PRODUCT_ID for the last six months. 
Which SQL statement would you execute to get the desired output? 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/ 
 
A. SELECT o.customer_id, oi.product_id, SUM(oi.unit_price*oi.quantity) "Total" 
FROM order_items oi JOIN orders o 
ON oi.order_id=o.order_id 
GROUP BY ROLLUP (o.customer_id,oi.product_id) 
WHERE MONTHS_BETWEEN(order_date, SYSDATE) <= 6; 
B. SELECT o.customer_id, oi.product_id, SUM(oi.unit_price*oi.quantity) "Total" 
FROM order_items oi JOIN orders o 
ON oi.order_id=o.order_id 
GROUP BY ROLLUP (o.customer_id,oi.product_id) 
HAVING MONTHS_BETWEEN(order_date, SYSDATE) <= 6; 
C. SELECT o.customer_id, oi.product_id, SUM(oi.unit_price*oi.quantity) "Total" 
FROM order_items oi JOIN orders o 
ON oi.order_id=o.order_id 
GROUP BY ROLLUP (o.customer_id, oi.product_id) 
WHERE MONTHS_BETWEEN(order_date, SYSDATE) >= 6; 
D. SELECT o.customer_id, oi.product_id, SUM(oi.unit_price*oi.quantity) "Total" 
FROM order_items oi JOIN orders o 
ON oi.order_id=o.order_id 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
WHERE MONTHS_BETWEEN(order_date, SYSDATE) <= 6 
GROUP BY ROLLUP (o.customer_id, oi.product_id) ; 
Answer: D 
 
12. View the Exhibit and examine the structure of the EMPLOYEES table. 
You want to retrieve hierarchical data of the employees using the topdown hierarchy. Which SQL clause 
would let you choose the direction to walk through the hierarchy tree? 
 
A. WHERE 
B. HAVING 
C. GROUP BY 
D. START WITH 
E. CONNECT BY PRIOR 
Answer: E 
 
13. Which two statements are true regarding the execution of the correlated subqueries? (Choose two.) 
A. The nested query executes after the outer query returns the row. 
B. The nested query executes first and then the outer query executes. 
C. The outer query executes only once for the result returned by the inner query. 
D. Each row returned by the outer query is evaluated for the results returned by the inner query. 
Answer: AD 
 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
14. OE and SCOTT are the users in the database. The ORDERS table is owned by OE. Evaluate the 
statements issued by the DBA in the following sequence: 
CREATE ROLE r1; 
GRANT SELECT, INSERT ON oe.orders TO r1; 
GRANT r1 TO scott; 
GRANT SELECT ON oe.orders TO scott; 
REVOKE SELECT ON oe.orders FROM scott; 
What would be the outcome after executing the statements? 
A. SCOTT would be able to query the OE.ORDERS table. 
B. SCOTT would not be able to query the OE.ORDERS table. 
C. The REVOKE statement would remove the SELECT privilege from SCOTT as well as from the role 
R1. 
D. The REVOKE statement would give an error because the SELECT privilege has been granted to the 
role R1. 
Answer: A 
 
15. Evaluate the following SQL statement: 
ALTER TABLE hr.emp 
SET UNUSED (mgr_id); 
Which statement is true regarding the effect of the above SQL statement? 
A. Any synonym existing on the EMP table would have to be recreated. 
B. Any constraints defined on the MGR_ID column would be removed by the above command. 
C. Any views created on the EMP table that include the MGR_ID column would have to be dropped and 
recreated. 
D. Any index created on the MGR_ID column would continue to exist until the DROP UNUSED 
COLUMNS command is executed. 
Answer: B 
 
16. EMPDET is an external table containing the columns EMPNO and ENAME. Which command would 
work in relation to the EMPDET table? 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
A. UPDATE empdet 
SET ename = 'Amit' 
WHERE empno = 1234; 
B. DELETE FROM empdet 
WHERE ename LIKE 'J%'; 
C. CREATE VIEW empvu 
AS  
SELECT * FROM empdept; 
D. CREATE INDEX empdet_idx 
ON empdet(empno); 
Answer: C 
 
17. View the Exhibit and examine the structure of the MARKS_DETAILS and MARKStables. 
Which is the best method to load data from the MARKS_DETAILStable to the MARKStable? 
 
A. Pivoting INSERT 
B. Unconditional INSERT 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
C. Conditional ALL INSERT 
D. Conditional FIRST INSERT 
Answer: A 
 
18. View the Exhibit and examine the data in ORDERS and ORDER_ITEMS tables. 
You need to create a view that displays the ORDER ID, ORDER_DATE, and the total number of items in 
each order. 
Which CREATE VIEW statement would create the view successfully? 
 
A. CREATE OR REPLACE VIEW ord_vu (order_id,order_date) 
AS SELECT o.order_id, o.order_date, COUNT(i.line_item_id) 
"NO OF ITEMS" 
FROM orders o JOIN order_items i 
ON (o.order_id = i.order_id) 
GROUP BY o.order_id,o.order_date; 
B. CREATE OR REPLACE VIEW ord_vu 
AS SELECT o.order_id, o.order_date, COUNT(i.line_item_id) 
"NO OF ITEMS" 
FROM orders o JOIN order_items i 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
ON (o.order_id = i.order_id) 
GROUP BY o.order_id,o.order_date; 
C. CREATE OR REPLACE VIEW ord_vu 
AS SELECT o.order_id, o.order_date, COUNT(i.line_item_id) 
FROM orders o JOIN order_items i 
ON (o.order_id = i.order_id) 
GROUP BY o.order_id,o.order_date; 
D. CREATE OR REPLACE VIEW ord_vu 
AS SELECT o.order_id, o.order_date, COUNT(i.line_item_id)||' NO OF ITEMS' 
FROM orders o JOIN order_items i 
ON (o.order_id = i.order_id) 
GROUP BY o.order_id,o.order_date 
WITH CHECK OPTION; 
Answer: B 
 
19. View the Exhibit and examine PRODUCTS and ORDER_ITEMS tables. 
You executed the following query to display PRODUCT_NAME and the number of times the product has 
been ordered: 
SELECT p.product_name, i.item_cnt 
FROM (SELECT product_id, COUNT (*) item_cnt 
FROM order_items 
GROUP BY product_id) i RIGHT OUTER JOIN products p 
ON  i.product_id = p.product_id; 
What would happen when the above statement is executed? 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/ 
 
A. The statement would execute successfully to produce the required output. 
B. The statement would not execute because inline views and outer joins cannot be used together. 
C. The statement would not execute because the ITEM_CNT alias cannot be displayed in the outer 
query. 
D. The statement would not execute because the GROUP BY clause cannot be used in the inline view. 
Answer: A 
 
20. 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 groupwise 
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 crosstabular report for calculating the subtotals 
Answer: C 
 
 
 
 
Your Partner of IT Exam                                                            http://www.exambible.co.uk/
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