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Oracle 1Z0-171 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. Entity relationships and normalization basics 2. Tables, rows, columns, and keys
Data Definition Language (DDL)	- Schema objects 1. Tables and constraints 2. Views and indexes
Data Manipulation Language (DML)	- Insert, Update, Delete operations 1. Transaction control (COMMIT, ROLLBACK) 2. Data integrity considerations
Retrieving Data Using SQL	- SELECT statements 1. Column selection and expressions 2. Sorting results with ORDER BY 3. Filtering with WHERE clause - Joins and Subqueries 1. Correlated and non-correlated subqueries 2. Inner and outer joins

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Oracle Database 23ai SQL Associate Sample Questions (Q74-Q79):

NEW QUESTION # 74
Which of the following ensures that a relational database enforces data integrity?

A. Indexes on all columns
B. Constraints such as primary keys, foreign keys, and unique constraints
C. Redundant data storage
D. Hierarchical data organization

Answer: B

NEW QUESTION # 75
What does the following SQL statement do?
CREATE TABLE employees (
employee_id NUMBER PRIMARY KEY,
first_name VARCHAR2(50),
hire_date DATE NOT NULL
);

A. Creates a table with no constraints
B. Creates a table with a primary key and a NOT NULL constraint
C. Creates a temporary table
D. Creates a table with only VARCHAR2 and DATE columns

Answer: B

NEW QUESTION # 76
What does the following query return?
SELECT ROUND(123.456, 1) AS rounded_value FROM dual;

A. 123.5
B. 123.4
C. 123.45
D. 0

Answer: A

NEW QUESTION # 77
Which clause can be used with SET operators to sort the final result set?

A. GROUP BY
B. HAVING
C. WHERE
D. ORDER BY

Answer: D

NEW QUESTION # 78
Which SQL statement is used to create a table?

A. ALTER TABLE
B. ADD TABLE
C. CREATE TABLE
D. INSERT

Answer: C

NEW QUESTION # 79
......

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