Oracle 1z0-071 New Dumps Questions | Latest 1z0-071 Exam Topics

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Oracle 1z0-071 Exam Syllabus Topics:

Section	Objectives
Topic 1: SQL Functions	- Single-row functions 1. Character, numeric, date functions - Conversion and conditional functions 1. TO_CHAR, TO_NUMBER, CASE expressions
Topic 2: Subqueries and Advanced SQL	- Single-row and multi-row subqueries - Correlated subqueries and nested queries
Topic 3: SQL Retrieval	- Joins and set operations 1. INNER, OUTER, CROSS joins 2. UNION, INTERSECT, MINUS - SELECT statements and filtering data 1. WHERE clause and conditions 2. ORDER BY and row limiting
Topic 4: Data Manipulation and Schema Objects	- DML operations 1. INSERT, UPDATE, DELETE, MERGE - DDL operations 1. CREATE, ALTER, DROP tables and constraints
Topic 5: Relational Database Concepts	- Data types and database objects overview - Tables, rows, columns, and relational model basics

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Oracle Database SQL Sample Questions (Q391-Q396):

NEW QUESTION # 391
Examine this SQL statement:
SELECT cust_id, cus_last_name "Last Name"
FROM customers
WHERE country_id = 10
UNION
SELECT cust_id CUST_NO, cust_last_name
FROM customers
WHERE country_id = 30
Identify three ORDER BY clauses, any one of which can complete the query successfully.

A. ORDER BY "Last Name"
B. ORDERBY 2, 1
C. ORDER BY "CUST_NO"
D. ORDER BY CUST_NO
E. ORDER BY 2,cust_id

Answer: A,B,E

NEW QUESTION # 392
Examine these requirements:
1. Display book titles for books purchased before January 17, 2007 costing less than 500 or more than 1000.
2. Sort the titles by date of purchase, starting with the most recently purchased book.
Which two queries can be used?

A. SELECT book_title FROM books WHERE (price BETWEEN 500 AND 1000) AND (purchase_date<'17-JAN-2007') ORDER BY purchase_date;
B. SELECT book_title FROM books WHERE (price IN (500, 1000)) AND (purchase date < '17-JAN-2007') ORDER BY purchase_date ASC;
C. SELECT book_title FROM books WHERE (price NOT BETWEEN 500 AND 1000) AND (purchase_date< '17-JAN-2007') ORDER BY purchase_date DESC;
D. SELECT book_title FROM books WHERE (price< 500 OR >1000) AND (purchase date< '17-JAN-2007') ORDER BY purchase date DESC;

Answer: C

Explanation:
The requirements specify that we need to select book titles based on a price condition and a date condition, and then sort the results by the date of purchase.
A . This query will not execute successfully because there is a syntax error in the price condition. It should be price < 500 OR price > 1000.
B . This query is incorrect. The requirement specifies that the price must be less than 500 or more than 1000, not in a list of values.
C . This query is correct. It selects books where the price is not between 500 and 1000 (thus, less than 500 or more than 1000) and the purchase date is before January 17, 2007, ordered by purchase date in descending order.
D . This query is incorrect because it selects books with prices between 500 and 1000, which is not what the requirement specifies.
Reference:
Oracle Documentation on SQL SELECT Statement: https://docs.oracle.com/database/121/SQLRF/statements_10002.htm#SQLRF01702

NEW QUESTION # 393
Examine the description or the CUSTOMERS table:

For Customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?

A. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers WHERE cust_income_level <> NULL AND due_amount <> NULL;
B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level != NULL AND cust_credit_level != NULL;
C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers WHERE cust_income_level IS NOT NULL AND due_amount IS NOT NULL;
D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers WHERE cust_income_level != NULL AND due_amount != NULL;
E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers WHERE cust_income_level IS NOT NULL AND cust_credit_limit IS NOT NULL;

Answer: E

Explanation:
In Oracle SQL, the correct way to check for non-null values is to use the IS NOT NULL condition. Using != NULL or <> NULL is incorrect because NULL represents the absence of any value, and you cannot use equality or inequality operators to check for NULL.
C . SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level IS NOT NULL AND cust_credit_limit IS NOT NULL; This query will correctly filter out any customers with a NULL income level or credit limit and then calculate the due amount as 5% of their credit limit for the remaining customers.
Reference:
Oracle Database SQL Language Reference 12c, especially sections on conditions and expressions that deal with NULL values.

NEW QUESTION # 394
Which two statements are true about * _TABLES views?

A. All users can query DBA_TABLES successfully.
B. You must have ANY TABLE system privileges, or be granted object privileges on the table, to view a table in USER_TABLES.
C. You must have ANY TABLE system privileges, or be granted object privileges on the table, to view a table in ALL_TABLES.
D. You must have ANY TABLE system privileges, or be granted object privilges on the table, to viewa tabl e in DBA TABLES.
E. USER TABLES displays all tables owned by the current user.
F. ALL TABLES displays all tables owned by the current user.

Answer: D,E

NEW QUESTION # 395
View the Exhibit and examine the structure of the SALES and PRODUCTS tables. (Choose two.)

In the SALES table, PROD_ID is the foreign key referencing PROD_ID in the PRODUCTS table. You must list each product ID and the number of times it has been sold.
Examine this query which is missing a JOIN operator:
SQL > SELECT p.prod_id, count(s.prod_id)
FROM products p ______________ sales s
ON p.prod_id = s.prod_id
GROUP BY p.prod_id;
Which two JOIN operations can be used to obtain the required output?

A. JOIN
B. FULL OUTER JOIN
C. RIGHT OUTER JOIN
D. LEFT OUETR JOIN

Answer: B,D

NEW QUESTION # 396
......

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