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Oracle 1Z1-171 Exam Syllabus Topics:

Section	Objectives
Advanced SQL Features	- Set operators and functions 1. UNION, INTERSECT, MINUS 2. Single-row and group functions - Aggregations and grouping 1. GROUP BY and HAVING 2. Aggregate functions
Relational Database Concepts	- Database fundamentals and relational model 1. Tables, rows, columns, and keys 2. Entity relationships and normalization basics
Data Manipulation Language (DML)	- Insert, Update, Delete operations 1. Data integrity considerations 2. Transaction control (COMMIT, ROLLBACK)
Retrieving Data Using SQL	- SELECT statements 1. Filtering with WHERE clause 2. Column selection and expressions 3. Sorting results with ORDER BY - Joins and Subqueries 1. Inner and outer joins 2. Correlated and non-correlated subqueries
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 (Q53-Q58):

NEW QUESTION # 53
What is the primary purpose of an index in SQL?

A. To store metadata about a table
B. To improve the performance of data retrieval queries
C. To enforce data integrity constraints
D. To ensure uniqueness of values in a column

Answer: B

NEW QUESTION # 54
Which of the following data dictionary views provides information about constraints on tables?

A. USER_CONSTRAINTS
B. All of the above
C. ALL_CONSTRAINTS
D. DBA_CONSTRAINTS

Answer: B

NEW QUESTION # 55
Which statement can be used to undo changes made in a transaction?

A. MERGE
B. COMMIT
C. ROLLBACK
D. SAVEPOINT

Answer: C

NEW QUESTION # 56
What is required for the queries combined by a SET operator to work correctly?

A. Both queries must use the GROUP BY clause.
B. The result sets must have the same number of columns and compatible data types.
C. The tables must be joined using a primary key.
D. Both queries must include the WHERE clause.

Answer: B

NEW QUESTION # 57
What is a role in Oracle Database?

A. A database object used to enforce constraints
B. A predefined SQL statement stored in the database
C. A set of privileges that can be granted to users or other roles
D. A user-defined function

Answer: C

NEW QUESTION # 58
......

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