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Oracle 1z1-071 Exam Syllabus Topics:

Section	Objectives
SQL Functions	- Single-row functions 1. Character, numeric, date functions - Conversion and conditional functions 1. TO_CHAR, TO_NUMBER, CASE expressions
Relational Database Concepts	- Tables, rows, columns, and relational model basics - Data types and database objects overview
SQL Retrieval	- Joins and set operations 1. INNER, OUTER, CROSS joins 2. UNION, INTERSECT, MINUS - SELECT statements and filtering data 1. ORDER BY and row limiting 2. WHERE clause and conditions
Subqueries and Advanced SQL	- Correlated subqueries and nested queries - Single-row and multi-row subqueries
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 (Q59-Q64):

NEW QUESTION # 59
Which two statements are true regarding the EXISTS operator used in the correlated subqueries? (Choose two.)

A. It is used to test whether the values retrieved by the inner query exist in the result of the outer query.
B. It is used to test whether the values retrieved by the outer query exist in the result set of the inner query.
C. The outer query continues evaluating the result set of the inner query until all the values in the result set are processed.
D. The outer query stops evaluating the result set of the inner query when the first value is found.

Answer: B,D

Explanation:
Explanation
http://www.techonthenet.com/oracle/exists.php

NEW QUESTION # 60
SELECT *
FROM bricks,colors;
Which two statements are true?

A. You can add a WHERE clause with filtering criteria.
B. It returnsthe same rows as SELECT * FROM bricks CROSS JOIN colors.
C. You can add a USING clause with a join condition.
D. It returns the number of rows in BRICKS plus the number of rows in COLORS.
E. You can add an ON clause with a join condition.

Answer: A,B

NEW QUESTION # 61
View the exhibit and examine the structure of the CUSTOMERS table.

Which two tasks would require subqueries or joins to be executed in a single statement? (Choose two.)

A. finding the average credit limit of male customers residing in 'Tokyo' or 'Sydney'
B. listing of those customers, whose credit limit is the same as the credit limit of customers residing in the city 'Tokyo'.
C. finding the number of customers, in each city, whose marital status is 'married'.
D. listing of customers who do not have a credit limit and were born before 1980
E. finding the number of customers, in each city, whose credit limit is more than the average credit limit of all the customers

Answer: B,E

NEW QUESTION # 62
Which two are true about transactions in the Oracle Database?

A. DDL statements automatically commit only data dictionary updates caused by executing the DDL.
B. A DDL statement issued by a session with an uncommitted transaction automatically Commits that transaction.
C. An uncommitted transaction is automatically committed when the user exits SQL*Plus.
D. DML statements always start new transactions.
E. A session can see uncommitted updates made by the same user in a different session.

Answer: B,C

Explanation:
This question appears to be a duplicate of question no. 269, and the correct answers provided there apply here as well.
B). True. A DDL statement automatically commits any outstanding uncommitted transaction in the session. E.
True. Exiting SQL*Plus without explicitly committing a transaction will cause the uncommitted transaction to be rolled back, not committed.
A, C, and D are incorrect for the same reasons provided in the explanation for question no. 269.

NEW QUESTION # 63
View the Exhibit and examine the details of PRODUCT_INFORMATIONtable.

You have the requirement to display PRODUCT_NAMEfrom the table where the CATEGORY_IDcolumn has values 12or 13, and the SUPPLIER_IDcolumn has the value 102088. You executed the following SQL statement:
SELECT product_name
FROM product_information
WHERE (category_id = 12 AND category_id = 13) AND supplier_id = 102088; Which statement is true regarding the execution of the query?

A. It would execute and the output would display the desired result.
B. It would execute but the output would return no rows.
C. It would not execute because the entire WHEREclause condition is not enclosed within the parentheses.
D. It would not execute because the same column has been used in both sides of the ANDlogical operator to form the condition.

Answer: B

NEW QUESTION # 64
......

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