[Q16-Q30] Master 2026 Latest The Questions Oracle Database and Pass 1Z0-171 Real Exam!

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Master 2026 Latest The Questions Oracle Database and Pass 1Z0-171 Real Exam!

Penetration testers simulate 1Z0-171 exam PDF

Oracle 1Z0-171 Exam Syllabus Topics:

Section Objectives
Using Set Operators – Use UNION, UNION ALL, INTERSECT, and MINUS operators
Using SQL Functions – Use character, number, and date functions in SELECT statements
– Use conversion functions
Using Joins – Use cross joins
– Use outer joins (LEFT, RIGHT, FULL)
– Use self-joins
– Use equijoins and non-equijoins
Using DDL Statements – Create and manage views
– Create and manage constraints
– Create and manage tables
– Create and manage sequences
– Create and manage indexes
Using Subqueries – Use correlated subqueries
– Use multiple-row subqueries
– Use single-row subqueries
Controlling User Access – Create and manage roles
– Differentiate system privileges from object privileges
– Grant and revoke privileges
Using SELECT Statements – Use the ORDER BY clause to sort rows
– Use the FETCH clause to limit rows returned
– Use the WHERE clause to restrict rows
– Execute a basic SELECT statement
Using DML Statements – Use the MERGE statement
– Control transactions
– Update rows in a table
– Insert rows into a table
– Delete rows from a table

 

NO.16 Which of the following SQL commands retrieves data from a relational database?

 
 
 
 

NO.17 Which command would drop an index from a table?

 
 
 
 

NO.18 Which SQL keyword is used to remove duplicate rows from the result set of a query?

 
 
 
 

NO.19 Which SQL JOIN keyword retrieves all rows from both tables, including those without matches?

 
 
 
 

NO.20 Which type of join returns all rows from the left table, even if there are no matches in the right table?

 
 
 
 

NO.21 Which SQL statement is used to create a table?

 
 
 
 

NO.22 Which type of privilege allows a user to perform administrative tasks, such as creating other users?

 
 
 
 

NO.23 What is the purpose of a correlated subquery?

 
 
 
 

NO.24 What does the following query return?
SELECT department_id FROM departments
INTERSECT
SELECT department_id FROM employees;

 
 
 
 

NO.25 Which Oracle SQL function returns the current date and time, including time zone information?

 
 
 
 

NO.26 What is a SELF JOIN in SQL?

 
 
 
 

NO.27 What does the following SQL query do?
SELECT * FROM employees WHERE salary > 5000 ORDER BY department_id;

 
 
 
 

NO.28 What is the purpose of using external tables in Oracle Database?

 
 
 
 

NO.29 Which clause in an UPDATE statement typically uses a subquery to assign values to columns?

 
 
 
 

NO.30 What happens when the maximum value of a sequence is reached?

 
 
 
 

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