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Oracle 1Z0-171 Exam Syllabus Topics:

Section	Objectives
Topic 1: Data Definition Language (DDL)	- Schema objects 1. Tables and constraints 2. Views and indexes
Topic 2: Relational Database Concepts	- Database fundamentals and relational model 1. Entity relationships and normalization basics 2. Tables, rows, columns, and keys
Topic 3: Data Manipulation Language (DML)	- Insert, Update, Delete operations 1. Data integrity considerations 2. Transaction control (COMMIT, ROLLBACK)
Topic 4: Advanced SQL Features	- Aggregations and grouping 1. Aggregate functions 2. GROUP BY and HAVING - Set operators and functions 1. UNION, INTERSECT, MINUS 2. Single-row and group functions
Topic 5: 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. Correlated and non-correlated subqueries 2. Inner and outer joins

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

NEW QUESTION # 39
Which command grants a user the ability to query data from a specific table?

A. ENABLE SELECT ON table_name TO user_name;
B. GRANT SELECT ON table_name TO user_name;
C. ALLOW SELECT ON table_name TO user_name;
D. GRANT ALL ON table_name TO user_name;

Answer: B

NEW QUESTION # 40
What does the UNION ALL operation do when selecting matching columns from different tables?
SELECT employee_id, salary FROM employees
UNION ALL
SELECT employee_id, bonus FROM bonuses;

A. Combines all employee IDs, salaries, and bonuses, including duplicates
B. Returns only employees with duplicate employee IDs in both tables
C. Returns only the employees with salaries and bonuses
D. Combines the salaries and bonuses for employees, removing duplicates

Answer: A

NEW QUESTION # 41
Which SQLPlus command displays defined substitution variable values?

A. DEFINE
B. LIST
C. VERIFY
D. SHOW

Answer: A

NEW QUESTION # 42
What does the EXISTS operator check in a subquery?

A. If the subquery returns a specific number of rows
B. If the subquery contains only unique values
C. If the subquery returns any rows
D. If the subquery references the outer query

Answer: C

NEW QUESTION # 43
What does the following query return?
SELECT ROUND(123.456, 1) AS rounded_value FROM dual;

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

Answer: B

NEW QUESTION # 44
......

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