Free PDF 2026 Oracle 1Z0-171: Updated Oracle Database 23ai SQL Associate Reliable Mock Test

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Oracle 1Z0-171 Exam Syllabus Topics:

Section	Objectives
Relational Database Concepts	- Database fundamentals and relational model 1. Entity relationships and normalization basics 2. Tables, rows, columns, and keys
Data Manipulation Language (DML)	- Insert, Update, Delete operations 1. Data integrity considerations 2. Transaction control (COMMIT, ROLLBACK)
Retrieving Data Using SQL	- Joins and Subqueries 1. Inner and outer joins 2. Correlated and non-correlated subqueries - SELECT statements 1. Filtering with WHERE clause 2. Column selection and expressions 3. Sorting results with ORDER BY
Data Definition Language (DDL)	- Schema objects 1. Tables and constraints 2. Views and indexes
Advanced SQL Features	- Set operators and functions 1. UNION, INTERSECT, MINUS 2. Single-row and group functions - Aggregations and grouping 1. Aggregate functions 2. GROUP BY and HAVING

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Oracle Database 23ai SQL Associate Sample Questions (Q42-Q47):

NEW QUESTION # 42
Which data dictionary view provides information about all tables accessible to the current user?

A. SESSION_TABLES
B. ALL_TABLES
C. USER_TABLES
D. DBA_TABLES

Answer: B

NEW QUESTION # 43
Which command would drop an index from a table?

A. REMOVE INDEX
B. TRUNCATE INDEX
C. DROP INDEX
D. DELETE INDEX

Answer: C

NEW QUESTION # 44
Which SQL clause can be used in Oracle to limit the number of rows returned?

A. DISTINCT
B. WHERE
C. FETCH FIRST n ROWS ONLY
D. GROUP BY

Answer: C

NEW QUESTION # 45
What is the result of the following query?
SELECT employee_id
FROM employees
WHERE EXISTS (SELECT 1 FROM departments WHERE department_id = 10);

A. Employee IDs from department 10
B. All employee IDs
C. Employee IDs from departments with no employees
D. Employees with salaries greater than 10

Answer: B

NEW QUESTION # 46
Which of the following SET operators combines results from two queries and removes duplicates?

A. UNION ALL
B. UNION
C. INTERSECT
D. MINUS

Answer: B

NEW QUESTION # 47
......

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