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2021 Apr 1Z0-061 exam topics

Q1. You issue the following command to drop the products table: 

SQL> DROP TABLE products; 

Which three statements are true about the implication of this command? 

A. All data along with the table structure is deleted. 

B. A pending transaction in the session is committed. 

C. All indexes on the table remain but they are invalidated. 

D. All views and synonyms remain but they are invalidated. 

E. All data in the table is deleted but the table structure remains. 

Answer: A,B,D 

Q2. View the Exhibits and examine the structures of the products, sales, and customers tables. 

You need to generate a report that gives details of the customer's last name, name of the product, and the quantity sold for a customers in 'Tokyo'. 

Which two queries give the required result? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer: A,C 

Q3. View the Exhibit and examine the data in the employees table: 

You want to display all the employee names and their corresponding manager names. Evaluate the following query: 

Which join option can be used in the blank in the above query to get the required output? 

A. INNER JOIN 

B. FULL OUTER JOIN 

C. LEFT OUTER JOIN 

D. RIGHT OUTER JOIN 

Answer: C 

Q4. View the Exhibit and examine the structure of the CUSTOMERS table. 

You have been asked to produce a report on the customers table showing the customers details sorted in descending order of the city and in the descending order of their income level in each city. 

Which query would accomplish this task? 

A. Option A 

B. Option B 

C. Option C D. Option D 

Answer: A 

Q5. You execute the following commands: 

For which substitution variables are you prompted for the input? 

A. None, because no input required 

B. Both the substitution variables 'hiredate' and 'mgr_id 

C. Only 'hiredate' 

D. Only 'mgr_id' 

Answer: B 

Renew 1Z0-061 sample question:

Q6. Examine the structure of the products table: 

You want to display the names of the products that have the highest total value for UNIT_PRICE * QTY_IN_HAND. 

Which SQL statement gives the required output? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer: A 

Q7. View the Exhibit and examine the structure of the product, component, and PDT_COMP tables. 

In product table, PDTNO is the primary key. 

In component table, COMPNO is the primary key. 

In PDT_COMP table, <PDTNO, COMPNO) is the primary key, PDTNO is the foreign key referencing PDTNO in product table and COMPNO is the foreign key referencing the COMPNO in component table. 

You want to generate a report listing the product names and their corresponding component names, if the component names and product names exist. 

Evaluate the following query: 

SQL>SELECT pdtno, pdtname, compno, compname 

FROM product _____________ pdt_comp 

USING (pdtno) ____________ component USING (compno) 

WHERE compname IS NOT NULL; 

Which combination of joins used in the blanks in the above query gives the correct output? 

A. JOIN; JOIN 

B. FULL OUTER JOIN; FULL OUTER JOIN 

C. RIGHT OUTER JOIN; LEFT OUTER JOIN 

D. LEFT OUTER JOIN; RIGHT OUTER JOIN 

Answer: C 

Q8. Examine the structure of the orders table: 

You want to find the total value of all the orders for each year and issue the following command: 

Which statement is true regarding the outcome? 

A. It executes successfully and gives the correct output. 

B. It gives an error because the TO_CHAR function is not valid. 

C. It executes successfully but does not give the correct output. 

D. It gives an error because the data type conversion in the SELECT list does not match the data type conversion in the GROUP BY clause. 

Answer: D 

Q9. You want to display the date for the first Monday of the next month and issue the following command: 

What is the outcome? 

A. It executes successfully and returns the correct result. 

B. It executes successfully but does not return the correct result. 

C. It generates an error because TO_CHAR should be replaced with TO_DATE. 

D. It generates an error because rrrr should be replaced by rr in the format string. 

E. It generates an error because fm and double quotation marks should not be used in the format string. 

Answer: A 

Q10. View the Exhibit and examine the structure of the customers table. 

Using the customers table, you need to generate a report that shows an increase in the credit limit by 15% for all customers. Customers whose credit limit has not been entered should have the message "Not Available" displayed. 

Which SQL statement would produce the required result? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer: D 

Explanation: 

NVL Function 

Converts a null value to an actual value: 

Data types that can be used are date, character, and number. 

Data types must match: 

– NVL(commission_pct, 0) 

– NVL(hire_date, '01-JAN-97') 

– NVL(job_id, 'No Job Yet')