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Oracle 1Z0-171 Exam Syllabus Topics:

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

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Oracle Database 23ai SQL Associate Sample Questions (Q94-Q99):

NEW QUESTION # 94
Which command revokes a user's privilege to update a table?

A. DELETE UPDATE ON table_name FROM user_name;
B. REVOKE UPDATE ON table_name FROM user_name;
C. DENY UPDATE ON table_name FROM user_name;
D. REMOVE UPDATE ON table_name FROM user_name;

Answer: B

NEW QUESTION # 95
Which function returns the current system date and time in the database session's time zone?

A. CURRENT_TIMESTAMP
B. SYSDATE
C. LOCAL_TIME
D. SYSTEM_TIME

Answer: A

NEW QUESTION # 96
What is the result of the following query?
SELECT employee_id
FROM employees
WHERE EXISTS (SELECT 1 FROM departments WHERE department_id = 10);

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

Answer: A

NEW QUESTION # 97
Which SQL clause can be used in Oracle to limit the number of rows returned?

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

Answer: D

NEW QUESTION # 98
Which of the following statements is true about constraints in Oracle Database?

A. Constraints cannot reference other tables.
B. Constraints are automatically dropped when rows are deleted.
C. Constraints can be added or modified using the ALTER TABLE statement.
D. Constraints can only be added when creating a table.

Answer: C

NEW QUESTION # 99
......

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