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Candidates for the Oracle 1z1-071 certification exam should have a solid understanding of SQL and Oracle database management. They should be able to write complex SQL queries, understand SQL data types and functions, and be knowledgeable about the various components of Oracle databases. 1z1-071 exam consists of 73 multiple-choice questions that must be completed within a time period of 100 minutes. A passing score of 63% is required to earn the certification, which is valid for three years. Overall, the Oracle 1z1-071 certification is a valuable credential for IT professionals who want to demonstrate their knowledge and expertise in managing Oracle databases.

Oracle 1z1-071 Exam, also known as the Oracle Database SQL Exam, is a certification exam that tests candidates on their knowledge of SQL (Structured Query Language) and the Oracle Database. 1z1-071 exam is designed for database professionals who are seeking to validate their expertise in SQL and database management. The Oracle 1z1-071 Exam is a popular certification that is recognized globally and is a requirement for some job roles in the IT industry.

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Passing this Oracle exam means that you are on the way of getting the following credentials:

Oracle Database 12c Administrator Certified Associate;
Oracle Database SQL Certified Associate

Completing 1Z0-071 is enough to obtain the first certificate of the associate level, while for gaining the second one in the Oracle Database 12c Administrator track, passing the 1Z0-062 exam is a necessity. Anyway, having any of these certifications on your CV will show your employer your ability to apply SQL knowledge for the Oracle Database server maintenance.

Oracle Database SQL Sample Questions (Q171-Q176):

NEW QUESTION # 171
You execute this query:

What is the result?

A. It executes successfully but does not return any result.
B. It returns the date for the last Monday of the current month.
C. It returns the date for the first Monday of the next month.
D. It generates an error.

Answer: C

Explanation:
Explanation/Reference:

NEW QUESTION # 172
Which two statements will return the names of the three employees with the lowest salaries?

A. SELECT last_name, salary
FROM employees
WHERE ROWNUM<=3
B. SELECT last_name,salary
FROM employees
ORDER BY salary
FETCH FIRST 3 ROWS ONLY;
C. SELECT last_name,salary
FROM employees
WHERE ROWNUM<=3
ORDER BY (SELECT salary FROM employees);
D. SELECT last_name,salary
FROM (SELECT * FROM employees ORDER BY salary)
E. SELECT last_name,salary
FROM employees
FETCH FIRST 3 ROWS ONLY
ORDER BY salary;

Answer: B

Explanation:
To retrieve the names of the three employees with the lowest salaries, the correct SQL syntax and logic are crucial:
Option B:
SELECT last_name, salary FROM employees ORDER BY salary FETCH FIRST 3 ROWS ONLY; This query correctly sorts employees by their salary in ascending order and fetches the first three rows only. The FETCH FIRST n ROWS ONLY syntax is a standard way to limit the result set in SQL.
Options A, C, D, and E do not correctly implement the logic for fetching the lowest three salaries due to misuse of ROWNUM or incorrect placement of ORDER BY and FETCH clauses.

NEW QUESTION # 173
The user SCOTT who is the owner of ORDERS and ORDER_ITEMS 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. ALL should be replaced with a list of specific privileges.
B. PUBLIC should be replaced with specific usernames.
C. Separate GRANT statements are required for ORDERS and ORDER_ITEMS tables.
D. WITH GRANT OPTION should be added to the statement.

Answer: C

Explanation:
References:
http://docs.oracle.com/javadb/10.8.3.0/ref/rrefsqljgrant.html

NEW QUESTION # 174
Examine the description of the PRODUCT_ STATUS table:

The STATUS column contains the values IN STOCK or OUT OF STocK for each row.
Which two queries will execute successfully?

A. SELECT PROD_ID||q'('s not available)' "CURRENT AVAILABILITY"
FROM product_ status WHERE status = 'OUT OF STOCK';
B. SELECT prod_id q's not available" from product_ status WHERE status = 'OUT OF STOCK';
C. SELECT prod_id "CURRENT AVAILABILITY"||q' ('s not available)' from product_ status WHERE status
= 'OUT OF STOCK';
D. SELECT PROD_ID||q'('s not available)' FROM
product_ status WHERE status = 'OUT OF STOCK';
E. SELECT prod_id ||q"' s not available" FROM
product_ status WHERE status = 'OUT OF STOCK';
F. SELECT prod_id ||q'(' s not available)' 'CURRENT AVAILABILITY' FROM
product_ status WHERE status = 'OUT OF STOCK'

Answer: A

Explanation:
The || operator is used in Oracle SQL to concatenate strings, and the q quote operator allows you to use alternative quoting mechanisms to avoid conflicts with single quotes within a string.
In options A, B, C, D, E, and F, the q-quote operator is used in different ways to define string literals.
The correct use of the q quote operator requires the format q'[...]', where [...] is the quote delimiter of your choice and can be any single character such as {, [, (, <, or others.
Option D is the correct answer because it follows the correct syntax for the q quote operator and concatenates the literal string correctly with the value of PROD_ID.
Here is the corrected syntax from option D:
SELECT PROD_ID || q'[('s not available)]' "CURRENT AVAILABILITY" FROM product_status WHERE status = 'OUT OF STOCK'; This query will execute successfully and is the only one that correctly uses the q quote operator.

NEW QUESTION # 175
Which task can be performed by using a single Data Manipulation Language (DML) statement?

A. removing all data only from one single column on which a primary key constraint is defined
B. removing all data only from one single column on which a unique constraint is defined
C. adding a column with a default value when inserting a row into a table
D. adding a column constraint when inserting a row into a table

Answer: B

NEW QUESTION # 176
......

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1z1-071 Valid Exam Blueprint, Reliable 1z1-071 Study Plan

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Passing this Oracle exam means that you are on the way of getting the following credentials:

Oracle Database SQL Sample Questions (Q171-Q176):

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