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Dependable 1Z0-171 Exam Dumps to Become Oracle Certified [Q35-Q52]

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Dependable 1Z0-171 Exam Dumps to Become Oracle Certified

Get Ready with 1Z0-171 Exam Dumps (2026)

Oracle 1Z0-171 Exam Syllabus Topics:

Section Weight Objectives
DDL for Tables and Relationships 15% – Constraints management
– Table structure, columns, data types
– Drop columns, set unused columns
– TRUNCATE TABLE statement
– CREATE TABLE statement
– Views management
– Temporary and external tables
Displaying Data from Multiple Tables 10% – Different types of joins: equijoin, non-equijoin, outer join, self-join
– Cartesian products
Using SET Operators 5% – Using ORDER BY with set operations
– Matching SELECT statements
– UNION, UNION ALL, INTERSECT, MINUS operators
Relational Database Concepts 5% – Relationship between database and SQL
– SQL SELECT clauses and ERD components
– Relational database theoretical and physical aspects
Managing Tables with DML 5% – Multi-table INSERT and MERGE statements
– Transaction management and control
– INSERT, UPDATE, DELETE operations
Controlling User Access 5% – Roles creation and privilege assignment
– Granting privileges on tables
– System vs object privileges
Retrieving and Sorting Data 15% – Operators, literals, DISTINCT keyword
– Limiting rows and substitution variables
– Arithmetic expressions and NULL values
– Sorting query results
– Using SELECT statement and column aliases
– Operator precedence rules
– DEFINE and VERIFY commands
Data Dictionary and Time Zones 5% – CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP
– INTERVAL data types
– Using data dictionary views
Using Subqueries 5% – Single-row and multi-row subqueries
– Correlated subqueries for update and delete
Managing Indexes, Synonyms, Sequences 5% – Create and manage indexes
– Create and manage sequences
– Create and manage synonyms
Using Functions 25% – TO_CHAR, TO_NUMBER, TO_DATE conversion functions
– NVL, NULLIF, COALESCE functions
– Nested functions
– Character functions for string manipulation
– Date arithmetic and date functions
– Data type conversion: implicit and explicit
– ROUND, TRUNC, MOD functions
– Restricting group results
– Group functions and grouping data

 

QUESTION 35
What does the UNION ALL operation do when selecting matching columns from different tables?
SELECT employee_id, salary FROM employees
UNION ALL
SELECT employee_id, bonus FROM bonuses;

 
 
 
 

QUESTION 36
Which command would drop an index from a table?

 
 
 
 

QUESTION 37
What happens when a unique index is created on a table column?

 
 
 
 

QUESTION 38
What will the following query result in?
SELECT e.employee_id, e.manager_id
FROM employees e
WHERE e.manager_id IS NOT NULL;

 
 
 
 

QUESTION 39
Which of the following statements creates an ascending sequence starting at 100 and incrementing by 10?

 
 
 
 

QUESTION 40
What will the following SQL query do?
UPDATE employees
SET salary = salary * 1.1
WHERE department_id = 10;

 
 
 
 

QUESTION 41
What is required for the queries combined by a SET operator to work correctly?

 
 
 
 

QUESTION 42
Which of the following best describes a relational database?

 
 
 
 

QUESTION 43
What does the COMMIT statement do in SQL?

 
 
 
 

QUESTION 44
What is the output of the following query?
SELECT CURRENT_DATE FROM dual;

 
 
 
 

QUESTION 45
Which component of an ERD (Entity-Relationship Diagram) represents the attributes of an entity?

 
 
 
 

QUESTION 46
What happens when a temporary table is created in Oracle Database?

 
 
 
 

QUESTION 47
What is the primary purpose of an index in SQL?

 
 
 
 

QUESTION 48
What does the following command do?
GRANT CREATE SESSION TO user_name;

 
 
 
 

QUESTION 49
Which INTERVAL data type would you use to store a period of time in years and months?

 
 
 
 

QUESTION 50
Which of the following is true about foreign key constraints in SQL?

 
 
 

QUESTION 51
Which SQL statement is used to create a table?

 
 
 
 

QUESTION 52
What is the default order of evaluation when multiple SET operators are used in a query?

 
 
 
 

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