100% PASS QUIZ 1Z0-071 - THE BEST ORACLE DATABASE SQL TEST OBJECTIVES PDF

100% Pass Quiz 1z0-071 - The Best Oracle Database SQL Test Objectives Pdf

100% Pass Quiz 1z0-071 - The Best Oracle Database SQL Test Objectives Pdf

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Oracle 1z1-071 (Oracle Database SQL) Certification Exam is an industry-recognized certification that validates the skills and knowledge of professionals in SQL database management. 1z0-071 exam is designed for database administrators, developers, and analysts who work with Oracle SQL databases. 1z0-071 exam tests the candidate's ability to write basic SQL queries, create database objects, and manage database data.

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The candidate is not able to learn everything they need to know about this certification; therefore, requiring them to spend additional time studying. If the candidate does not do well on previous exams (or feels like they did poorly), this could cause a hindrance in their certification goals. The material provided by Oracle does not always provide the latest information; therefore, requiring the candidate to visit other sites for learning about what is most current and important in their industry.Oracle 1z0-071 Dumps can help candidates who are repeating because of failure in the first attempt, by offering practice exams. If the candidate does not think that they did well on previous exams (or feels like they did poorly), this could cause a hindrance in their certification goals.

Preparation Resources

Preparing for any Oracle exam is never an easy task, and the 1z0-071 exam is no exception. To achieve the desired result, candidates have to go out of their way and spend enough time to successfully write the final test on the first try. It should be recalled that due to the continuous development of the Oracle technologies, many of the preparatory materials that can be found on the Internet so, be careful of using the outdated ones and better start form the official sources.

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Oracle Database SQL Sample Questions (Q81-Q86):

NEW QUESTION # 81
Examine these SQL statements which execute successfully:

Which two statements are true after execution? (Choose two.)

  • A. The primary key constraint will be enabled and DEFERRED.
  • B. The foreign key constraint will be disabled.
  • C. The foreign key constraint will be enabled and IMMEDIATE.
  • D. The foreign key constraint will be enabled and DEFERRED.
  • E. The primary key constraint will be enabled and IMMEDIATE.

Answer: A,C


NEW QUESTION # 82
Which two are true about self joins?

  • A. They can use INNER JOIN and LEFT JOIN.
  • B. They require table aliases.
  • C. They require the EXISTS opnrator in the join condition.
  • D. They are always equijoins.
  • E. They require the NOT EXISTS operator in the join condition.
  • F. They have no join condition.

Answer: A,B

Explanation:
Self joins in Oracle Database 12c SQL have these characteristics:
* Option D: They can use INNER JOIN and LEFT JOIN.
* Self joins can indeed use various join types, including inner and left outer joins. A self join is a regular join, but the table is joined with itself.
* Option E: They require table aliases.
* When a table is joined to itself, aliases are required to distinguish between the different instances of the same table within the same query.
Options A, B, C, and F are incorrect:
* Option A is incorrect because self joins can be non-equijoins as well.
* Option B is incorrect because self joins do not require the NOT EXISTS operator. They may require a condition, but NOT EXISTS is not a necessity.
* Option C is incorrect because a join condition is needed to relate the two instances of the same table in a self join.
* Option F is incorrect for the same reason as B; the EXISTS operator is not a requirement for self joins.


NEW QUESTION # 83
Examine the description of the PRODUCT_ DETAILS table:

Which two statements are true?

  • A. PRODUCT_ PRICE can be used in an arithmetic expression even if it has no value stored in it.
  • B. PRODUCT_ PRICE contains the value zero by default if no value is assigned to it.
  • C. PRODUCT_ ID can be assigned the PRIMARY KEY constraint.
  • D. EXPIRY_ DATE cannot be used in arithmetic expressions.
  • E. EXPIRY_ DATE contains the SYSDATE by default if no date is assigned to it.
  • F. PRODUCT_ NAME cannot contain duplicate values.

Answer: A,C


NEW QUESTION # 84
You must create a table EMPLOYEES in which the values in the columns EMPLOYEES_ID and LOGIN_ID must be unique and not null.
Which two SQL statements would create the required table? (Choose two.)

  • A. CREATE TABLE employees
    (employee_id NUMBER,
    Login_id NUMBER,
    Employee_name VARCHAR2(100),
    Hire_date DATE,
    CONSTRAINT emp_id_uk UNIQUE (employee_id, login_id);
    CONSTRAINT emp_id_nn NOT NULL (employee_id, login_id));
  • B. CREATE TABLE employees
    (employee_id NUMBER CONSTRAINT emp_id_nn NOT NULL,
    Login_id NUMBER CONSTRAINT login_id_nn NOT NULL,
    Employee_name VARCHAR2(100),
    Hire_date DATE,
    CONSTRAINT emp_id_ukUNIQUE (employee_id, login_id));
  • C. CREATE TABLE employees
    (employee_id NUMBER,
    Login_id NUMBER,
    Employee_name VARCHAR2(100),
    Hire_date DATE,
    CONSTRAINT emp_id_ukUNIQUE (employee_id, login_id));
  • D. CREATE TABLE employees
    (employee_id NUMBER CONSTRAINT emp_id_pk PRIMARY KEY,
    Login_id NUMBER UNIQUE,
    Employee_name VARCHAR2(25),
    Hire_date DATE);
  • E. CREATE TABLE employees
    (employee_id NUMBER,
    login_id NUMBER,
    employee_name VARCHAR2(25),
    hire_date DATE,
    CONSTRAINT emp_id_pk PRIMARY KEY (employee_id, login_id));

Answer: B,E


NEW QUESTION # 85
View the exhibit and examine the description of the PRODUCT_INFORMATIONtable.

Which SQL statement would retrieve from the table the number of products having LIST_PRICEas NULL?

  • A. SELECT COUNT (list_price)
    FROM product_information
    WHERE list_price i= NULL
  • B. SELECT COUNT (DISTINCT list_price)
    FROM product_information
    WHERE list_price is NULL
  • C. SELECT COUNT (list_price)
    FROM product_information
    WHERE list_price is NULL
  • D. SELECT COUNT (NVL(list_price, 0))
    FROM product_information
    WHERE list_price is NULL

Answer: D


NEW QUESTION # 86
......

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