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Oracle 1Z0-171 Exam Syllabus Topics:

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

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Oracle Database 23ai SQL Associate Sample Questions (Q52-Q57):

NEW QUESTION # 52
What does the following SQL query do?
SELECT *
FROM employees e
JOIN employees m ON e.manager_id = m.employee_id;

A. Lists employees and their corresponding managers
B. Lists employees without departments
C. Lists employees who are not managers
D. Lists employees who are managers

Answer: A

NEW QUESTION # 53
What happens when the TRUNCATE TABLE statement is executed?

A. Deletes the table structure permanently
B. Deletes all rows in the table without logging the operation for rollback
C. Deletes only the last row in the table
D. Deletes all rows in the table and logs the operation for rollback

Answer: B

NEW QUESTION # 54
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 temporary table
B. Creates a table with no constraints
C. Creates a table with only VARCHAR2 and DATE columns
D. Creates a table with a primary key and a NOT NULL constraint

Answer: D

NEW QUESTION # 55
What is the result of the following query?
SELECT employee_id
FROM employees
WHERE EXISTS (SELECT 1 FROM departments WHERE department_id = 10);

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

Answer: B

NEW QUESTION # 56
Which SQL statement is used to create a table?

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

Answer: B

NEW QUESTION # 57
......

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