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Vendor: Oracle
Certifications: Oracle PL/SQL Developer Certified Associate
Exam Code: 1Z0-071
Exam Name: Oracle Database 12c SQL
Updated: Jun 10, 2020
Q&As: 380

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Oracle 1Z0-071 Exam Video Practice Test

Oracle PL/SQL Developer Certified Associate 1Z0-071 Exam Practice Test (Real Exam Questions)

QUESTION 1
Examine the structure of the MARKS table:

Certificationvce 1Z0-071 exam questions-q1

Which two statements would execute successfully? (Choose two.)
A. SELECT SUM(DISTINCT NVL(subject1,0)), MAX(subject1) FROM marks WHERE subject1 > subject2;
B. SELECT student_name subject1 FROM marks WHERE subject1 > AVG(subject1);
C. SELECT SUM(subject1+subject2+subject3) FROM marks WHERE student_name IS NULL;
D. SELECT student_name,SUM(subject1) FROM marks WHERE student_name LIKE `R%\\’;
Correct Answer: AC

QUESTION 2
View the exhibit and examine the data in the PROJ_TASK_DETAILS table. (Choose the best answer.)

Certificationvce 1Z0-071 exam questions-q2

The PROJ_TASK_DETAILS table stores information about project tasks and the relation between them.
The BASED_ON column indicates dependencies between tasks.
Some tasks do not depend on the completion of other tasks.
You must generate a report listing all task IDs, the task ID of any task upon which it depends and the name of the
employee in charge of the task upon which it depends.
Which query would give the required result?
A. SELECT p.task_id, p.based_on, d.task_in_charge FROM proj_task_details p JOIN proj_task_details d ON (p.task_id
= d.task_id);
B. SELECT p.task_id, p.based_on, d.task_in_charge FROM proj_task_details p FULL OUTER JOIN proj_task_details d
ON (p.based_on = d.task_id);
C. SELECT p.task_id, p.based_on, d.task_in_charge FROM proj_task_details p JOIN proj_task_details d ON
(p.based_on = d.task_id);
D. SELECT p.task_id, p.based_on, d.task_in_charge FROM proj_task_details p LEFT OUTER JOIN proj_task_details d
ON (p.based_on = d.task_id);
Correct Answer: D

QUESTION 3
Which three are true about multitable INSERT statements?
A. They can be performed on external tables using SQL* Loader.
B. They can be performed on relational tables.
C. They can be performed only by using a subquery.
D. They can insert each computed row into more than one table.
E. They can be performed on views.
F. They can be performed on remote tables.
Correct Answer: ABC
Reference: https://www.akadia.com/services/ora_multitable_insert.html

QUESTION 4
Which two statements are true about the SET VERIFY ON command? (Choose two.)
A. It can be used in SQL Developer and SQL*Plus
B. It displays values for variables used only in the WHERE clause of a query
C. It can be used only in SQL*Plus
D. It displays values for variables prefixed with andand
E. It displays values for variables created by the DEFINE command
Correct Answer: CE
Reference: https://blogs.oracle.com/opal/sqlplus-101-substitution-variables#4_1_8

QUESTION 5
Examine the description of the PROMOTIONS table:

Certificationvce 1Z0-071 exam questions-q5

You want to display the unique promotion costs in each promotion category. Which two queries can be used? (Choose
two.)
A. SELECT DISTINCT promo_category || ` has \\’ || promo_cost AS COSTS FROM promotions ORDER BY 1;
B. SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1;
C. SELECT promo_category, DISTINCT promo_cost FROM promotions ORDER BY 2;
D. SELECT DISTINCT promo_cost ||` in \\’|| DISTINCT promo_category FROM promotions ORDER BY 1;
E. SELECT promo_cost, promo_category FROM promotions ORDER BY 1;
Correct Answer: BC

QUESTION 6
Which three are key components of an Entity Relationship Model? (Choose three.)
A. an activity
B. a table
C. a relationship
D. an attribute
E. a unique identifier
F. an entity
Correct Answer: CDF
The three main components of the ER Model are entities, attributes and relationships.
Reference: https://www.dlsweb.rmit.edu.au/Toolbox/knowmang/content/data_concepts/e_r_model.htm

QUESTION 7
Which three are true about system and object privileges? (Choose three.)
A. WITH GRANT OPTION can be used when granting an object privilege to both users and roles
B. Adding a primary key constraint to an existing table in another schema requires a system privilege
C. Adding a foreign key constraint pointing to a table in another schema requires the REFERENCES object privilege
D. Revoking a system privilege that was granted with WITH ADMIN OPTION has a cascading effect
E. Revoking an object privilege that was granted with the WITH GRANT OPTION clause has a cascading effect.
F. WITH GRANT OPTION cannot be used when granting an object privilege to PUBLIC
Correct Answer: ACE
Reference https://docs.oracle.com/cd/B28359_01/network.111/b28531/authorization.htm#DBSEG004

QUESTION 8
View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables. (Choose the best answer.)

Certificationvce 1Z0-071 exam questions-q8

You executed this UPDATE statement:

Certificationvce 1Z0-071 exam questions-q8-2

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

QUESTION 9
These are the steps for a correlated subquery, listed in random order:
1.
The WHERE clause of the outer query is evaluated.
2.
A candidate row is fetched from the table specified in the outer query.
3.
This is repeated for the subsequent rows of the table, until 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, 1, 2, 3
C. 4, 2, 1, 3
D. 2, 4, 1, 3
Correct Answer: D
References: http://rajanimohanty.blogspot.co.uk/2014/01/correlated-subquery.html

QUESTION 10
View the Exhibit and examine the structure of the PRODUCT_INFORMATION and INVENTORIES tables.

Certificationvce 1Z0-071 exam questions-q10

You have a requirement from the supplies department to give a list containing PRODUCT_ID, SUPPLIER_ID, and
QUANTITY_ON_HAND for all the products wherein QUANTITY_ON_HAND is less than five.
Which two SQL statements can accomplish the task? (Choose two.)
A. SELECT i.product_id, i.quantity_on_hand, pi.supplier_id FROM product_information pi JOIN inventories i ON
(pi.product_id=i.product_id) WHERE quantity_on_hand
B. SELECT product_id, quantity_on_hand, supplier_id FROM product_information NATURAL JOIN inventories AND
quantity_on_hand
C. SELECT i.product_id, i.quantity_on_hand, pi.supplier_id FROM product_information pi JOIN inventories i ON
(pi.product_id=i.product_id) AND quantity_on_hand
D. SELECT i.product_id, i.quantity_on_hand, pi.supplier_id FROM product_information pi JOIN inventories i USING
(product_id) AND quantity_on_hand
Correct Answer: AC

QUESTION 11
Examine the structure of the SALES table.

Certificationvce 1Z0-071 exam questions-q11

Which two statements are true about the SALES1 table? (Choose two.)
A. It will not be created because the column-specified names in the SELECT and CREATE TABLE clauses do not
match.
B. It will have NOT NULL constraints on the selected columns which had those constraints in the SALES table.
C. It will not be created because of the invalid WHERE clause.
D. It is created with no rows.
E. It has PRIMARY KEY and UNIQUE constraints on the selected columns which had those constraints in the SALES
table.
Correct Answer: BD

QUESTION 12
In the customers table, the CUST_CITY column contains the value \\’Paris\\’ for the CUST_FIRST_NAME \\’Abigail\\’.
Evaluate the following query:

Certificationvce 1Z0-071 exam questions-q12

What would be the outcome?
A. Abigail PA
B. Abigail Pa
C. Abigail IS
D. An error message
Correct Answer: B

QUESTION 13
You need to calculate the number of days from 1st January 2019 until today.
Dates are stored in the default format of DD-MON-RR.
Which two queries give the required output?
A. SELECT TO_CHAR(SYSDATE, ‘DD-MON-YYYY
Correct Answer: A

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