testcollection 1z1-071 – Premium VCE Dumps

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Real 1z1-071 Dumps – Oracle Correct Answers updated on 2025 [Q176-Q193]

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Oracle PL/SQL Developer Certified Associate 1z1-071 Exam Practice Dumps

The Oracle Database SQL certification exam consists of 73 questions that must be answered within 100 minutes. Test-takers can register for the exam online and may take it at a Pearson VUE testing center or remotely through an online proctoring system. 1z1-071 exam evaluates candidates on various topics, including SQL schema manipulation, data retrieval, and manipulation, and database management. A passing score of 63% is required to earn the certification, which is valid for three years.

Oracle 1z0-071 exam is an essential certification for professionals working in the database administration field. Passing 1z1-071 exam demonstrates a solid understanding of SQL and relational database management concepts and is recognized globally by employers in the IT industry. Candidates should have a fundamental understanding of SQL and relational database concepts, as well as practical experience in working with Oracle databases. With this certification, professionals can advance their careers and increase their earning potential.

Q176. Which three statements are true regarding the usage of the WITH clause in complex correlated subqueries: (Choose three.)

It can be used only with the SELECT clause.

The WITH clause can hold more than one query.

If the query block name and the table name are the same, then the table name takes precedence.

The query name in the WITH clause is visible to other query blocks in the WITH clause as well as to the main query block

Q177. Examine the command:

What does ON DELETE CASCADE imply?

When the BOOKStable is dropped, the BOOK_TRANSACTIONStable is dropped.

When the BOOKStable is dropped, all the rows in the BOOK_TRANSACTIONStable are deleted but the table structure is retained.

When a row in the BOOKStable is deleted, the rows in the BOOK_TRANSACTIONStable whose BOOK_IDmatches that of the deleted row in the BOOKStable are also deleted.

When a value in the BOOKS.BOOK_IDcolumn is deleted, the corresponding value is updated in the BOOKS_TRANSACTIONS.BOOK_IDcolumn.

Q178. Examine the description of the EMPLOYEES table:

Which statement will execute successfully, returning distinct employees with non-null first names?

SELECT DISTINCT * FROM employees WHERE first_ name IS NOT NULL;

SELECT first_ name, DISTNCT last_ name FROM employees WHERE first_ name IS NOT NULL;

SELECT Distinct * FROM employees WHERE first_ name < > NULL;

SELECT first_ name, DISTINCT last_ name FROM employees WHERE first_ name < > NULL;

Q179. Examine the structure of the MEMBERS table: (Choose the best answer.)

Examine the SQL statement:
SQL > SELECT city, last_name LNAME FROM MEMBERS ORDER BY 1, LNAME DESC; What would be the result execution?

It displays all cities in descending order, within which the last names are further sorted in descending order.

It fails because a column alias cannot be used in the ORDER BY clause.

It fails because a column number and a column alias cannot be used together in the ORDER BY clause.

It displays all cities in ascending order, within which the last names are further sorted in descending order.

Q180. Examine the data in the COLORS table:

Examine the data in the BRICKS table:

Which two queries return all the rows from COLORS?

SELECT.
FROM bricks b
RIGHT JOIN colors c
ON b. color _rgb_ hex_ value = c. rgb hex_ value;

SELECT
EROM colors C
LEFT JOIN bricks
USING (rgb _ hex_ value) ;

SELECT
FROM bricks b
FULL JOIN colors C
ON b. color rgb _ hex_ value = c. rgb _hex_ value;

SELECT *
EROM bricks | b
JOIN colors C
ON b. color_ rgb_ hex_ value =c. rgb _hex value;

SELECT
EROM colors C
LEET JOIN bricks b
ON b. color_ rgb_ hex value = c. rgb. hex.
value
WHERE b. brick_ id > 0;

Q181. Evaluate the following SQL statement:
SQL> select cust_id, cust_last_name “Last name”
FROM customers
WHERE country_id = 10
UNION
SELECT cust_id CUST_NO, cust_last_name
FROM customers
WHERE country_id = 30
Identify three ORDER BY clauses either one of which can complete the query.

ORDER BY “Last name”

ORDER BY 2, cust_id

ORDER BY CUST_NO

ORDER BY 2, 1

ORDER BY “CUST_NO”

Q182. Which three statements are true regarding the data types?

Only one LONG column can be used per table.

ATIMESTAMP data type column stores only time values with fractional seconds.

The BLOB data type column is used to store binary data in an operating system file.

The minimum column width that can be specified for a varchar2 data type column is one.

The value for a CHAR data type column is blank-padded to the maximum defined column width.

Q183. View the Exhibit and examine the structure of the EMPLOYEES and JOB_HISTORY tables.

Examine this query which must select the employee IDs of all the employees who have held the job SA_MAN at any time during their employment.
SELECT employee_id
FROM employees
WHERE job_id = ‘SA_MAN’
————————————-
SELECT employee_id
FROM job_history
WHERE job_id=’SA_MAN’;
Choose two correct SET operators which would cause the query to return the desired result. (Choose two.)

UNION

MINUS

INTERSECT

UNION ALL

Q184. Examine the data in the PRODUCTS table:

Examine these queries:
1. SELECT prod name, prod list
FROM products
WHERE prod 1ist NOT IN(10,20) AND category _id=1;
2. SELECT prod name, | prod _ list
FROM products
WHERE prod list < > ANY (10,20) AND category _id= 1;
SELECT prod name, prod _ list
FROM products
WHERE prod_ list <> ALL (10, 20) AND category _ id= 1;
Which queries generate the same output?

1 and 3

1, 2 and 3

2 and 3

1 and 2

Q185. Examine the description of the PRODUCT_ STATUS table:

The STATUS column contains the values IN STOCK or OUT OF STocK for each row.
Which two queries will execute successfully?

SELECT prod_id ||q'(‘ s not available)’ ‘CURRENT AVAILABILITY’ FROM
product_ status WHERE status = ‘OUT OF STOCK’

SELECT prod_id ||q”‘ s not available” FROM
product_ status WHERE status = ‘OUT OF STOCK’;

SELECT PROD_ID||q'(‘s not available)’ FROM
product_ status WHERE status = ‘OUT OF STOCK’;

SELECT PROD_ID||q'(‘s not available)’ “CURRENT AVAILABILITY”
FROM product_ status WHERE status = ‘OUT OF STOCK’;

SELECT prod_id q’s not available” from product_ status WHERE status = ‘OUT OF STOCK’;

SELECT prod_id “CURRENT AVAILABILITY”||q’ (‘s not available)’ from product_ status WHERE status
= ‘OUT OF STOCK’;

Q186. Which three are true aboutprivileges and roles?

System prilgese always set prilge for an entire database.

PUBLIC acts as a default role granted to every user in a database.

A user has all object privileges for every object in their schema by default.

A role can contain a combination of several privileges and roles.

A role is owned by the user who created it.

All roles are owned by the sYs schema.

PUBIIC can be revoked from a user.

Q187. Which three statements are true about inner and outer joins?

A full outer join returns matched and unmatched rows.

A full outer join must use Oracle syntax.

Outer joins can be used when there are multiple join conditions on two tables.

Outer joins can only be used between two tables per query.

An inner join returns matched rows.

A left or right outer join returns only unmatched rows.

Q188. Which two are true about queries using set operators such as UNION?

An expression in the first SELECT list must have a column alias for the expression

CHAR columns of different lengths used with a set operator retum a vAacsua mhtoe e equals the longest CHAR value.

Queries using set operators do not perform implicit conversion across data type groups (e.g. character, numeric)

In a query containing multiple set operators INTERSECT always takes precedence over UNION and UNION ALL

All set operators are valid on columns all data types.

Q189. Examine the description of the CUSTOMERS table:

CUSTNO is the PRIMARY KEY.
You must determine if any customers’ details have been entered more than once using a different CUSTNO, by listing all duplicate names.
Which two methods can you use to get the required result?

LEFT OUTER JOIN with self join

self join

RIGHT OUTER JOIN with self join

FULL OUTER JOIN with self join

subquery

Q190. Table EMPLOYEES contains columns including EMPLOYEE_ID, JOB_ID and SALARY.
Only the EMPLOYEE_ID column is indexed.
Rows exist for employees 100 and 200.
Examine this statement:

Which two statements are true? (Choose two.)

Employees 100 and 200 will have the same JOB_ID as before the update command

Employees 100 will have JOB_ID set to the same value as the JOB_ID of employee 200

Employees 100 and 200 will have the same SALARY as before the update command

Employee 200 will have SALARY set to the same value as the SALARY of employee 100

Employee 100 will have SALARY set to the same value as the SALARY of employee 200

Employee 200 will have JOB_ID set to the same value as the JOB_ID of employee 100

Q191. You must create a table EMPLOYEES in which the values in the columns EMPLOYEES_ID and LOGIN_ID must be unique and not null.
Which two SQL statements would create the required table? (Choose two.)

CREATE TABLE employees
(employee_id NUMBER,
Login_id NUMBER,
Employee_name VARCHAR2(100),
Hire_date DATE,
CONSTRAINT emp_id_ukUNIQUE (employee_id, login_id));

CREATE TABLE employees
(employee_id NUMBER,
login_id NUMBER,
employee_name VARCHAR2(25),
hire_date DATE,
CONSTRAINT emp_id_pk PRIMARY KEY (employee_id, login_id));

CREATE TABLE employees
(employee_id NUMBER CONSTRAINT emp_id_pk PRIMARY KEY,
Login_id NUMBER UNIQUE,
Employee_name VARCHAR2(25),
Hire_date DATE);

CREATE TABLE employees
(employee_id NUMBER,
Login_id NUMBER,
Employee_name VARCHAR2(100),
Hire_date DATE,
CONSTRAINT emp_id_uk UNIQUE (employee_id, login_id);
CONSTRAINT emp_id_nn NOT NULL (employee_id, login_id));

CREATE TABLE employees
(employee_id NUMBER CONSTRAINT emp_id_nn NOT NULL,
Login_id NUMBER CONSTRAINT login_id_nn NOT NULL,
Employee_name VARCHAR2(100),
Hire_date DATE,
CONSTRAINT emp_id_ukUNIQUE (employee_id, login_id));

Q192. Examine the structure of the EMPLOYEES table. (Choose two.)

You must display the maximum and minimum salaries of employees hired 1 year ago.
Which two statements would provide the correct output?

SELECT MIN(Salary) minsal, MAX(salary) maxsal
FROM employees
WHERE hire_date < SYSDATE-365
GROUP BY MIN(salary), MAX(salary);

SELECT minsal, maxsal
FROM (SELECT MIN(salary) minsal, MAX(salary) maxsal
FROM employees
WHERE hire_date < SYSDATE-365)
GROUP BY maxsal, minsal;

SELECT minsal, maxsal
FROM (SELECT MIN(salary) minsal, MAX(salary) maxsal
FROM employees
WHERE hire_date < SYSDATE-365
GROUP BY MIN(salary), MAX(salary);

SELECT MIN(Salary), MAX(salary)
FROM (SELECT salary FROM
employees
WHERE hire_date < SYSDATE-365);

Q193. You execute the SQL statement:

What is the outcome?

It fails because the NOT NULL and DEFAULT options cannot be combined for the same column.

It succeeds and CITY can contain only ‘SEATTLE’ or null for all rows.

It fails because the condition for the CNAMES constraint is not valid.

It succeeds and an index is crated for CITIZEN_ID.

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Real 1z1-071 Dumps – Oracle Correct Answers updated on 2025 [Q176-Q193]