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Oracle 1z0-071 Exam Syllabus Topics:

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

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Oracle Database SQL Sample Questions (Q17-Q22):

NEW QUESTION # 17
Which two queries will result in an error?

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

Answer: A,C

NEW QUESTION # 18
View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables.
(Choose the best answer.)

You executed this UPDATE statement:
UPDATE
( SELECT order_date, order_total, customer_id FROM orders)
Set order_date = '22-mar-2007'
WHERE customer_id IN
(SELECT customer_id FROM customers
WHERE cust_last_name = 'Roberts' AND credit_limit = 600);
Which statement is true regarding the execution?

A. It would not execute because two tables cannot be referenced in a single UPDATE statement.
B. It would not execute because a subquery cannot be used in the WHERE clause of an UPDATE statement.
C. It would not execute because a SELECT statement cannot be used in place of a table name.
D. It would execute and restrict modifications to the columns specified in the SELECT statement.

Answer: D

NEW QUESTION # 19
View the Exhibit and examine the structure in the DEPARTMENTS tables. (Choose two.)

Examine this SQL statement:
SELECT department_id "DEPT_ID", department_name, 'b' FROM
departments
WHERE departments_id=90
UNION
SELECT department_id, department_name DEPT_NAME, 'a' FROM
departments
WHERE department_id=10
Which two ORDER BY clauses can be used to sort the output?

A. ORDER BY 'b';
B. ORDER BY 3;
C. ORDER BY DEPT_NAME;
D. ORDER BY DEPT_ID;

Answer: B,D

Explanation:
Explanation/Reference:

NEW QUESTION # 20
View the Exhibit and examine the structure of ORDERS and ORDER_ITEMS tables.
ORDER_ID is the primary key in the ORDERS table. It is also the foreign key in the ORDER_ITEMS table wherein it is created with the ON DELETE CASCADE option.
Which DELETE statement would execute successfully?

A. DELETE order_idFROM ordersWHERE order_total < 1000;
B. DELETE orders o, order_items IWHERE o.order_id = i.order_id;
C. DELETEFROM ordersWHERE (SELECT order_idFROM order_items);
D. DELETE ordersWHERE order_total < 1000;

Answer: C

NEW QUESTION # 21
Examine the description of the ENPLOYES table:

Which query requires explicit data type conversion?

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

Answer: A

NEW QUESTION # 22
......

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