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Oracle 1Z1-171 Exam Syllabus Topics:

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

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Oracle Database 23ai SQL Associate Sample Questions (Q39-Q44):

NEW QUESTION # 39
Which type of join includes rows that do not have matching values in the joined table?

A. INNER JOIN
B. OUTER JOIN
C. SELF JOIN
D. CROSS JOIN

Answer: B

NEW QUESTION # 40
How does SQL handle NULL values in arithmetic expressions?

A. Produces a NULL result
B. Treats them as zero
C. Treats them as the largest possible number
D. Produces an error

Answer: A

NEW QUESTION # 41
What does the following query return?
SELECT department_id FROM departments
INTERSECT
SELECT department_id FROM employees;

A. All department IDs from the departments table
B. Department IDs that exist only in the employees table
C. All department IDs from the employees table
D. Department IDs that exist in both the departments and employees tables

Answer: D

NEW QUESTION # 42
What is the purpose of using external tables in Oracle Database?

A. To improve the performance of complex queries
B. To create temporary tables for session-specific data
C. To manage data stored in external files using SQL
D. To store backup copies of database tables

Answer: C

NEW QUESTION # 43
What is the relationship between SQL and a relational database?

A. SQL is a standard query language used to interact with relational databases
B. SQL is a file system used to store relational database data.
C. SQL is used to create flat file databases.
D. SQL is a scripting language used for file manipulation.

Answer: A

NEW QUESTION # 44
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