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Oracle 1z1-071 Exam Overview:

Certification Vendor:	Oracle
Exam Name:	Oracle Database SQL
Exam Number:	1Z0-071
Available Languages:	Portuguese, Japanese, Spanish, English, Chinese (Simplified)
Exam Duration:	120 minutes
Exam Format:	Multiple Choice, Proctored exam, Multiple Response, Computer-based exam
Related Certifications:	Oracle Database Development certifications Oracle Database Administrator Certified Associate
Certificate Validity Period:	Non-expiring (Oracle certification policy subject to change)
Exam Price:	USD 245 (varies by country/region)
Recommended Training:	Oracle Database SQL Training
Exam Registration:	Oracle Certification Registration
Sample Questions:	Oracle 1z1-071 Sample Questions
Exam Way:	Online proctored or test center delivery depending on region
Pre Condition:	No formal prerequisites required; basic knowledge of relational databases and SQL recommended.
Official Syllabus URL:	https://education.oracle.com/oracle-database-sql/pexam_1Z0-071

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Oracle 1z0-071 certification exam covers a range of topics related to SQL programming and database management. These include SQL language fundamentals, database design, data manipulation, data control, and retrieval. Candidates are expected to have a deep understanding of SQL language and its use in managing large-scale databases. They should also be familiar with the Oracle database management system and its features.

Oracle 1z1-071 exam tests candidates on a variety of topics, including SQL data retrieval, data manipulation, DDL and DML operations, database security, and performance tuning. 1z1-071 Exam consists of 73 multiple-choice questions and has a time limit of 100 minutes. Candidates must score at least 66% to pass the exam.

The Oracle 1z1-071 exam consists of 73 multiple-choice questions, and you have 105 minutes to complete it. The passing score for the 1z1-071 exam is 63%. 1z1-071 exam can be taken online or in-person at a Pearson VUE testing center. 1z1-071 exam fee is $245, and you can register for the exam on the Oracle website.

Oracle Database SQL Sample Questions (Q199-Q204):

NEW QUESTION # 199
Examine this description of the PRODUCTS table:

Rows exist in this table with data in all the columns. You put the PRODUCTS table in read-only mode. Which three commands execute successfully on PRODUCTS?

A. ALTER TABLE products DROP UNUSED COLUMNS
B. ALTER TABLE products SET UNUSED(expiry_date);
C. DROP TABLE products
D. CREATE INDEX price_idx on products (price);
E. TRUNCATE TABLE products;
F. ALTER TAELE products DROP COLUMN expiry_date;

Answer: A,C,D

Explanation:
B . CREATE INDEX price_idx on products (price); E. ALTER TABLE products DROP UNUSED COLUMNS; F . DROP TABLE products.
Comprehensive and Detailed Explanation WITH all Reference:
When a table is in read-only mode, most types of modifications are prohibited. However, certain operations can still be performed.
A . Incorrect. You cannot drop a column from a table that is in read-only mode, as it is a modifying operation. B. Correct. You can create an index on a read-only table. Creating an index does not modify the actual rows within the table; it builds a separate structure used for faster access. C. Incorrect. The SET UNUSED statement marks one or more columns as unused so they can be dropped when the database is not busy. This operation is considered a modifying operation and therefore is not allowed on a read-only table. D. Incorrect. Truncate is a DDL operation that would delete all rows from a table. This operation is not allowed on a read-only table. E. Correct. The ALTER TABLE ... DROP UNUSED COLUMNS statement is used to drop columns that have been previously marked as unused using the SET UNUSED statement. This operation is allowed because it only affects previously marked unused columns, not actively used data. F. Correct. Dropping a table is allowed even if it's in read-only mode because it is a DDL operation that does not operate on the rows of the table but rather on the object itself.
The behavior of read-only tables and the operations that can be performed on them are detailed in the Oracle Database SQL Language Reference and Oracle Database Administrator's Guide.

NEW QUESTION # 200
You issued this command:

Which three statements are true? (Choose three.)

A. Views referencing HR.EMPLOYEES are dropped.
B. All indexes defined on HR.EMPLOYEES are dropped.
C. All constraints defined on HR.EMPLOYEES are dropped.
D. Synonyms for HR.EMPLOYEES are dropped.
E. Sequences used to populate columns in the HR.EMPLOYEES table are dropped.
F. The HR.EMPLOYEES table may be moved to the recycle bin.

Answer: A,B,C

Explanation:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables010.htm#ADMIN01505

NEW QUESTION # 201
Examine the description of the CUSTOMERStable:

You want to display details of all customers who reside in cities starting with the letter D followed by at least two characters.
Which query can be used?
SELECT * FROM customers WHERE city = 'D_%';

A. SELECT * FROM customers WHERE city LIKE 'D_%';
B. SELECT * FROM customers WHERE city LIKE 'D_';
C. SELECT * FROM customers WHERE city = '%D_';
D.

Answer: C

NEW QUESTION # 202
Examine the description of the MEMBERStable:

Examine the partial query:
SELECT city, last_name LNAME FROM members ...;
You want to display all cities that contain the string AN. The cities must be returned in ascending order, with the last names further sorted in descending order.
Which two clauses must you add to the query? (Choose two.)

A. WHERE city = '%AN%'
B. ORDER BY 1, LNAME DESC
C. ORDER BY last_name DESC, city ASC
D. WHERE city IN ('%AN%')
E. WHERE city LIKE '%AN%'
F. ORDER BY 1, 2

Answer: B,C

Explanation:
Explanation/Reference: https://www.techonthenet.com/sql/order_by.php
https://www.studytonight.com/dbms/orderby-clause.php

NEW QUESTION # 203
Examine the description of the EMPLOYEES table:

Which query requires explicit data type conversion?

A. SELECT join_date FROM employees WHERE join_date > '10-02-2018';
B. SELECT SUBSTR(join_date, 1, 2) - 10 FROM employees;
C. SELECT salary + '120.50' FROM employees;
D. SELECT join_date + '20' FROM employees;
E. SELECT join_date || ' ' || salary FROM employees;

Answer: A

NEW QUESTION # 204
......

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