[Aug 22, 2026] 1Z0-171 Test Engine files, 1Z0-171 Dumps PDF [Q63-Q81]

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[Aug 22, 2026] 1Z0-171 Test Engine files, 1Z0-171 Dumps PDF

Latest Oracle 1Z0-171 PDF and Dumps (2026) Free Exam Questions Answers

Oracle 1Z0-171 Exam Syllabus Topics:

Section Weight Objectives
Topic 1: Using Subqueries 5% – Correlated subqueries for update and delete
– Single-row and multi-row subqueries
Topic 2: Managing Indexes, Synonyms, Sequences 5% – Create and manage sequences
– Create and manage indexes
– Create and manage synonyms
Topic 3: Data Dictionary and Time Zones 5% – CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP
– INTERVAL data types
– Using data dictionary views
Topic 4: Retrieving and Sorting Data 15% – Using SELECT statement and column aliases
– Limiting rows and substitution variables
– Operators, literals, DISTINCT keyword
– Operator precedence rules
– Arithmetic expressions and NULL values
– DEFINE and VERIFY commands
– Sorting query results
Topic 5: DDL for Tables and Relationships 15% – CREATE TABLE statement
– Constraints management
– Table structure, columns, data types
– Drop columns, set unused columns
– Views management
– Temporary and external tables
– TRUNCATE TABLE statement
Topic 6: Displaying Data from Multiple Tables 10% – Different types of joins: equijoin, non-equijoin, outer join, self-join
– Cartesian products
Topic 7: Using Functions 25% – Date arithmetic and date functions
– NVL, NULLIF, COALESCE functions
– ROUND, TRUNC, MOD functions
– Group functions and grouping data
– Character functions for string manipulation
– Nested functions
– Restricting group results
– TO_CHAR, TO_NUMBER, TO_DATE conversion functions
– Data type conversion: implicit and explicit
Topic 8: Managing Tables with DML 5% – INSERT, UPDATE, DELETE operations
– Multi-table INSERT and MERGE statements
– Transaction management and control
Topic 9: Relational Database Concepts 5% – Relationship between database and SQL
– SQL SELECT clauses and ERD components
– Relational database theoretical and physical aspects
Topic 10: Using SET Operators 5% – Using ORDER BY with set operations
– UNION, UNION ALL, INTERSECT, MINUS operators
– Matching SELECT statements
Topic 11: Controlling User Access 5% – Roles creation and privilege assignment
– Granting privileges on tables
– System vs object privileges

 

Q63. What does the following query return?
SELECT employee_id
FROM employees
WHERE department_id IN (SELECT department_id FROM departments WHERE location_id = 1000);

 
 
 
 

Q64. What happens when a unique index is created on a table column?

 
 
 
 

Q65. Which command grants a user the ability to query data from a specific table?

 
 
 
 

Q66. Which of the following SQL commands retrieves data from a relational database?

 
 
 
 

Q67. Which function is used to extract the year from a date in SQL?

 
 
 
 

Q68. What is a role in Oracle Database?

 
 
 
 

Q69. How is the LOCALTIMESTAMP function different from CURRENT_TIMESTAMP?

 
 
 
 

Q70. What does the following SQL query return?
SELECT employee_id, salary * 12 AS annual_salary FROM employees;

 
 
 
 

Q71. What will the following query return?
SELECT EXTRACT(YEAR FROM CURRENT_DATE) AS year FROM dual;

 
 
 

Q72. What happens when a temporary table is created in Oracle Database?

 
 
 
 

Q73. Which SQL keyword is used to remove duplicate rows from the result set of a query?

 
 
 
 

Q74. What does the following query return?
SELECT ROUND(123.456, 1) AS rounded_value FROM dual;

 
 
 
 

Q75. What is the result of using the following SQL query?
SELECT 100 + NULL AS result;

 
 
 
 

Q76. Which type of join retrieves only the rows with matching values in both tables?

 
 
 
 

Q77. The column data type is converted to a primary key.

 
 
 
 

Q78. Which data dictionary view provides information about all tables accessible to the current user?

 
 
 
 

Q79. Which SQL function can be used to replace NULL values with a specified value?

 
 
 
 

Q80. Which of the following statements is true about constraints in Oracle Database?

 
 
 
 

Q81. What is a SELF JOIN in SQL?

 
 
 
 

Pass Your Oracle Database 1Z0-171 Exam on Aug 22, 2026 with 111 Questions: https://www.troytecdumps.com/1Z0-171-troytec-exam-dumps.html

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