1Z0-071 DEMO TEST, 1Z0-071 VALID STUDY NOTES

1z0-071 Demo Test, 1z0-071 Valid Study Notes

1z0-071 Demo Test, 1z0-071 Valid Study Notes

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Oracle 1z0-071 is an entry-level certification exam for database administrators and developers who want to prove their knowledge of SQL. 1z0-071 exam is designed to test your understanding of fundamental concepts of SQL, such as querying data, modifying data, and creating database objects. 1z0-071 Exam is intended to measure your skills in writing SQL queries and statements that can be used to manipulate data in an Oracle database.

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Oracle Database SQL Sample Questions (Q256-Q261):

NEW QUESTION # 256
The user SCOTTwho is the owner of ORDERSand ORDER_ITEMStables issues the following GRANT command:
GRANT ALL
ON orders, order_items
TO PUBLIC;
What correction needs to be done to the above statement?

  • A. WITH GRANT OPTIONshould be added to the statement.
  • B. ALLshould be replaced with a list of specific privileges.
  • C. Separate GRANTstatements are required for ORDERSand ORDER_ITEMS tables.
  • D. PUBLICshould be replaced with specific usernames.

Answer: C

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


NEW QUESTION # 257
Refer to the exhibit.

Which two queries will result in an error?

  • A. SELECT LAST_NAME,12 * SALARY AS ANNUAL_SALARY
    FROM EMPLOYEES
    WHERE 12 * SALARY > 100000
    ORDER BY ANNUAL_SALARY;
  • B. SELECT FIRST_NAME LAST_NAME FROM EMPLOYEES;
  • C. SELECT LAST_NAME,12 * SALARY AS ANNUAL_SALARY
    FROM EMPLOYEES
    WHERE ANNUAL_SALARY > 100000
    ORDER BY ANNUAL_SALARY;
  • D. SELECT FIRST_NAME,LAST_NAME FROM EMPLOYEES;
  • E. SELECT LAST_NAME,12 * SALARY AS ANNUAL_SALARY
    FROM EMPLOYEES
    WHERE ANNUAL_SALARY > 100000
    ORDER BY 12 * SALARY ;
  • F. SELECT LAST_NAME,12 * SALARY AS ANNUAL_SALARY
    FROM EMPLOYEES
    WHERE 12 * SALARY > 100000
    ORDER BY 12 * SALARY;

Answer: C,E


NEW QUESTION # 258
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 is NULL
  • B. SELECT COUNT (DISTINCT list_price)
    FROM product_information
    WHERE list_price is NULL
  • C. SELECT COUNT (NVL(list_price, 0))
    FROM product_information
    WHERE list_price is NULL
  • D. SELECT COUNT (list_price)
    FROM product_information
    WHERE list_price i= NULL

Answer: C


NEW QUESTION # 259
You must display details of all users whose username contains the string 'ch_'. (Choose the best answer.) Which query generates the required output?

  • A. SELECT * FROM users
    Where user_name LIKE '%ch_%' ESCAPE '';
  • B. SELECT * FROM users
    Where user_name LIKE '%ch_%'ESCAPE'%';
  • C. SELECT * FROM users
    Where user_name LIKE 'ch_%' ESCAPE '_';
  • D. SELECT * FROM users
    Where user_name LIKE '%ch_';

Answer: B


NEW QUESTION # 260
Which two statements are true about the rules of precedence for operators? (Choose two.)

  • A. Arithmetic operators with equal precedence area evaluated from left to right within an expression
  • B. The concatenation operator | | is always evaluated before addition and subtraction in an expression
  • C. The + binary operator has the highest precedence in an expression in a SQL statement
  • D. Multiple parentheses can be used to override the default precedence of operators in an expression
  • E. NULLS influence the precedence of operators in an expression

Answer: C,D


NEW QUESTION # 261
......

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