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What are the language, duration, and format of the ORACLE 1z0-071 Certification Exam?

The language, duration, and format of the ORACLE 1z0-071 Certification Exam are defined below:

Language of exam: The language in which exam ORACLE 1z0-071 is being administered in English.
A number of questions: The total number of questions in exam ORACLE 1z0-071 is 78. You have to answer all the questions in the given time.
Time Duration: The total duration for answering all the questions asked in the ORACLE 1z0-071 exam is 120 min.

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Oracle Database SQL exam, also known as 1z1-071, is a certification exam that validates the skills and knowledge of professionals who want to work with Oracle Database SQL. It tests the candidate's ability to write SQL queries to retrieve data from a database, manipulate and analyze data, and create database objects such as tables, views, and indexes.

Oracle Database SQL Sample Questions (Q309-Q314):

NEW QUESTION # 309
View the Exhibit and examine the details of the PRODUCT_INFORMATION table.
Exhibit

You must display PRODUCT_NAME from the table where the CATEGORY_ID column has values 12 or 13, and the SUPPLIER_ID column has the value 102088.
You executed this SQL statement:

Which statement is true regarding the execution?

A. It would not execute because the entire WHERE clause is not enclosed within parentheses.
B. It would execute and return the desired result.
C. It would not execute because the same column has been used twice with the AND logical operator.
D. It would execute but would return no rows.

Answer: D

NEW QUESTION # 310
Examine the description of the PRODUCT_INFORMATION table:

Which query retrieves the number of products with a null list price?

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 (list_price) FROM product_information WHERE list_price = NULL;
D. SELECT COUNT(NVL(list_price, 0)) FROM product_information WHERE list_price IS NULL;

Answer: D

NEW QUESTION # 311
Examine the description of the PROMOTIONStable:

You want to display the unique promotion costs in each promotion category.
Which two queries can be used? (Choose two.)
SELECT DISTINCT promo_category || ' has ' || promo_cost AS COSTS FROM

A. promotions ORDER BY 1;
SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1;
B. ORDER BY 1;
SELECT promo_cost, promo_category FROM promotions ORDER BY 1;
C. SELECT DISTINCT promo_cost ||' in '|| DISTINCT promo_category FROM promotions
D. SELECT promo_category, DISTINCT promo_cost FROM promotions ORDER BY 2;
E.

Answer: C,D

NEW QUESTION # 312
The following are the steps for a correlated subquery, listed in random order:
1. The WHEREclause of the outer query is evaluated.
2. The candidate row is fetched from the table specified in the outer query.
3. This is repeated for the subsequent rows of the table, till all the rows are processed.
4. Rows are returned by the inner query, after being evaluated with the value from the candidate row in the outer query.
Which is the correct sequence in which the Oracle server evaluates a correlated subquery?

A. 2, 1, 4, 3
B. 4, 2, 1, 3
C. 2, 4, 1, 3
D. 4, 1, 2, 3

Answer: C

Explanation:
Explanation/Reference:
References:
http://rajanimohanty.blogspot.co.uk/2014/01/correlated-subquery.html

NEW QUESTION # 313
You and your colleague Andrew have these privileges on the EMPLOYEE_RECORDS table:
1. SELECT
2. INSERT
3. UPDATE
4. DELETE
You connect to the database instance an perform an update to some of the rows in EMPLOYEE_RECORDS, but don't commit yet.
Andrew connects to the database instance and queries the table
No othet user are accessing the table
Which two statements ate true at this point?

A. Andrew will be able to see the changes you habe made
B. Andrew will be unable to see the changes you have made
C. Andrew will be able to modify any rows in the table that have not been modified by your transaction
D. Andrew will be able to SELECT from the table, but be unable to modify any existing rows.
E. Andrew will be unable to perform any INSERT, UPDATE of DELETE on the teble

Answer: B,C

Explanation:
In Oracle Database, when a transaction is not committed, the changes it makes are not visible to other sessions.
This is due to Oracle's read consistency model, which means that Andrew will not be able to see the changes you have made until they are committed.
Option A is correct because, in Oracle, another session can modify rows that have not been locked by an uncommitted transaction.
Option C is incorrect because, as per Oracle's read consistency, the changes made by an uncommitted transaction are not visible to other users.
Option D is incorrect because Andrew can perform INSERT, UPDATE, or DELETE operations on the rows that you have not modified.
Option E is incorrect because, while Andrew will be able to SELECT from the table, he will still be able to modify rows that are not locked by your uncommitted update.
References:
* Oracle Documentation on Transactions: Transactions
* Oracle Documentation on Read Consistency: Read Consistency

NEW QUESTION # 314
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