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Oracle 1z0-071 Exam Syllabus Topics:

Section	Objectives
Data Manipulation and Schema Objects	- DDL operations 1. CREATE, ALTER, DROP tables and constraints - DML operations 1. INSERT, UPDATE, DELETE, MERGE
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. UNION, INTERSECT, MINUS 2. INNER, OUTER, CROSS joins
Relational Database Concepts	- Tables, rows, columns, and relational model basics - Data types and database objects overview
SQL Functions	- Single-row functions 1. Character, numeric, date functions - Conversion and conditional functions 1. TO_CHAR, TO_NUMBER, CASE expressions

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Oracle Database SQL Sample Questions (Q174-Q179):

NEW QUESTION # 174
Which two will execute successfully?

A. SELECT NVL('DATE',200) FROM (SELECT NULL AS "DATE" FROM DUAL);
B. SELECT COALESCE(O,SYSDATE) TRCH DUAL;
C. SELECT COALESCE('DATE',SYSDATE) FROM (SELECT NULL AS "DATE" FROM DUAL) ;
D. SELECT NVL('DATE',SYSDATE) FROM DUAL;
E. SELECT COALESCR('DATE', SYSDATE) FROM DUAL;

Answer: A,D

NEW QUESTION # 175
View the Exhibit and examine the structure of the ORDERStable.

Which UPDATE statement is valid?

A. UPDATE orders
SET order_date = '12-mar-2007',
order_total IS NULL
WHERE order_id = 2455;
B. UPDATE orders
SET order_date = '12-mar-2007',
order_total = NULL
WHERE order_id = 2455;
C. UPDATE orders
SET order_date = TO_DATE('12-mar-2007','dd-mon-yyyy'),
SET order_total = TO_NUMBER (NULL)
WHERE order_id = 2455;
D. UPDATE orders
SET order_date = '12-mar-2007',
AND order_total = TO_NUMBER(NULL)
WHERE order_id = 2455;

Answer: B

NEW QUESTION # 176
View the Exhibit and examine the structure of the CUSTOMERStable.

Using the CUSTOMERStable, you must generate a report that displays a credit limit increase of 15% for all customers.
Customers with no credit limit should have "Not Available" displayed.
Which SQL statement would produce the required result?
SELECT NVL(TO_CHAR(cust_credit_limit*.15),'Not Available') "NEW CREDIT"

A. FROM customers;
SELECT NVL(cust_credit_limit,'Not Available')*.15 "NEW CREDIT"
B. FROM customers;
C. FROM customers;
SELECT TO_CHAR(NVL(cust_credit_limit*.15,'Not Available')) "NEW CREDIT"
D. FROM customers;
SELECT NVL(cust_credit_limit*.15,'Not Available') "NEW CREDIT"

Answer: C

NEW QUESTION # 177
Examine the description of the EMPLOYEES table:

Which two queries return the highest salary in the table?

A. SELECT department_id, MAX(salary)
FROM employees
GROUP BY department_id;
B. SELECT MAX (salary)
FROM employees
GROUP BY department_id;
C. SELECT MAX (salary)
FROM employees;
D. SELECT MAX (salary)
FROM employees
GROUP BY department_id
HAVING MAX (salary) = MAX (MAX (salary));
E. SELECT MAX (MAX (salary))
FROM employees
GROUP BY department_id;

Answer: C,E

NEW QUESTION # 178
Choose two
Examine the description of the PRODUCT DETALS table:

A. EXPIRY_DATE cannot be used in arithmetic expressions.
B. PRODUCT_PRICE can be used in an arithmetic expression even if it has no value stored in it
C. PRODUCT_PRICE contains the value zero by default if no value is assigned to it.
D. PRODUCT_NAME cannot contain duplicate values.
E. PRODUCT_ID can be assigned the PEIMARY KEY constraint.
F. EXPIRY_DATE contains the SYSDATE by default if no date is assigned to it

Answer: B,E

NEW QUESTION # 179
......

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