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Q1. View the Exhibit and examine the description of the EMPLOYEES table. 

Evaluate the following SQL statement: 

SELECTfirst_name, employee_id, NEXr_DAY(ADD_MONTHS(hire_date, 6), 1) "Review" FROM employees; 

The query was written to retrieve the FIRST_NAME, EMPLOYEE_ID, and review date for employees. The review date is the first Monday after the completion of six months of the hiring. The 

NLS_TERRITORY parameter is set to AMERICA in the session. Which statement is true regarding this query? 

A. The query would execute to give the desired output. 

B. The query would not execute because date functions cannot be nested. 

C. The query would execute but the output would give review dates that are Sundays. 

D. The query would not execute because the NEXT_DAY function accepts a string as argument. 

Answer: C

Q2. Evaluate the following ALTER TABLE statement: 

ALTER TABLE orders 

SET UNUSED order_date; 

Which statement is true? 

A. The DESCRIBE command would still display the ORDER_DATE column. 

B. ROLLBACK can be used to get back the ORDER_DATE column in the ORDERS table. 

C. The ORDER_DATE column should be empty for the ALTER TABLE command to execute successfully. 

D. After executing the ALTER TABLE command, you can add a new column called ORDER_DATE to the ORDERS table. 

Answer: D

Q3. View the Exhibit and examine the descriptions for ORDERS and ORDER_ITEMS tables. 

Evaluate the following SQL statement: 

SELECT o.customer_id, oi.product_id, SUM(oi.unit_price*oi. quantity) "Order Amount" 

FROM order_items oi JOIN orders o 

ON oi.order_id = o.order_id 

GROUP BY CUBE (o.customer_id, oi.product_id); 

Which three statements are true regarding the output of this SQL statement? (Choose three.) 

A. t wouldreturn thesubtotals for theOrder Amount of every CUSTOMER_ID. 

B. twould returnthesubtotals fortheOrderAmountfor every PRODUCT_ID. 

C. twould return the subtotals fortheOrder Amount of every PRODUCT_IDandCUSTOMER_ID asonegroup. 

D. t would return the subtotals for the Order Amount of every CUSTOMER_ID and PRODUCT_ID as one group. 

E. t wouldreturnonly thegrandtotal for theOrderAmount ofeveryCUSTOMER_ID and PRODUCT_ID as onegroup. 

Answer: ABD

Q4. Which two statements are true about sequences created in a single instance database? (Choose two.) 

A. The numbers generated by a sequence can be used only for one table. 

B. DELETE <sequencename> would remove a sequence from the database. 

C. CURRVAL is used to refer to the last sequence number that has been generated. 

D. When the MAXVALUE limit for a sequence is reached, you can increase the MAXVALUE limit by using the ALTER SEQUENCE statement. 

E. When a database instance shuts down abnormally, the sequence numbers that have been cached but not used would be available once again when the database instance is restarted. 

Answer: CD

Q5. Evaluate the following ALTER TABLE statement: 

ALTER TABLE orders 

SET UNUSED order_date; 

Which statement is true? 

A. The DESCRIBE command would still display the ORDER_DATE column. 

B. ROLLBACK can be used to get back the ORDER_DATE column in the ORDERS table. 

C. The ORDER_DATE column should be empty for the ALTER TABLE command to execute successfully. 

D. After executing the ALTER TABLE command, you can add a new column called ORDER_DATE to the ORDERS table. 

Answer: D

Q6. View the Exhibit and examine the data in ORDERS_MASTER and MONTHLY_ORDERS tables. 

Evaluate the following MERGE statement: 

MERGE INTO orders_master o USING monthly_orders m ON (o.order_id = m.order_id) WHEN MATCHED THEN UPDATE SET o.order_total = m.order_total DELETE WHERE (m.order_total IS NULL) WHEN NOT MATCHED THEN INSERT VALUES (m.order_id, m.order_total); 

What would be the outcome of the above statement? 

A. The ORDERS_MASTER table would contain the ORDER_IDs 1 and 2. 

B. The ORDERS_MASTER table would contain the ORDER_IDs 1,2 and 3. 

C. The ORDERS_MASTER table would contain the ORDER_IDs 1,2 and 4. 

D. The ORDERS_MASTER table would contain the ORDER IDs 1,2,3 and 4. 

Answer: C

Q7. View the Exhibit and examine the structure for the ORDERS and ORDER_ITEMS tables. 

You want to display ORDER_ID, PRODUCT_ID, and TOTAL (UNIT_PRICE multiplied by QUANTITY) for all the orders placed in the last seven days. 

Which query would you execute? 

A. SELECT orde_id, product_id, unit_price*quantity "TOTAL" 

FROM order_items oi JOIN orders o 

ON (o.order_id=oi. order_id) 

WHERE o.order_date>=SYSDATE-7; 

B. SELECT o.order_id,oi.product_id, oi.unit_price*oi.quantity "TOTAL" 

FROM order_items oi JOIN orders o 

USING (order_id) 

WHERE o.order_date>=SYSDATE-7; 

C. SELECT o.order_id, oi.product_id, oi.unit_price*oi.quantity "TOTAL" 

FROM order_items oi JOIN orders o 

WHERE o.order_date>=SYSDATE-7 ON (o.order_id=oi. order_id); 

D. SELECT o.order_id, oi.product_id, oi.unit_price*oi.quantity "TOTAL" 

FROM orde_items oi JOIN orders o 

ON (o.order_id=oi. order_id) 

WHERE o. order date>=SYSDATE-7; 

Answer: D

Q8. 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

Q9. Which statement is true regarding the ROLLUP operator specified in the GROUP BY clause of a SQL statement? 

A. It produces only the subtotals for the groups specified in the GROUP BY clause. 

B. It produces only the grand totals for the groups specified in the GROUP BY clause. 

C. It produces higher-level subtotals, moving from right to left through the list of grouping columns specified in the GROUP BY clause. 

D. It produces higher-level subtotals, moving in all the directions through the list of grouping columns specified in the GROUP BY clause. 

Answer: C

Q10. Evaluate the following SELECT statement and view the Exhibit to examine its output: 

SELECT constraint_name, constraint_type, search_condition, r_constraint_name, delete_rule, status FROM user_constraints WHERE table_name = ORDERS 

Which two statements are true about the output? (Choose two.) 

A. Inthe secondcolumn, indicates a check constraint. 

B. TheSTATUS columnindicateswhether the tableiscurrently in use. 

C. The R_CONSTRAINT_NAME column givesthealternative name for the constraint. 

D. The column DELETE_RULE decides the state oftherelated rows inthechild tablewhenthe corresponding row is deleted from the parent table. 

Answer: AD