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Oracle 1Z1-171 Exam Syllabus Topics:

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

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Oracle Database 23ai SQL Associate Sample Questions (Q12-Q17):

NEW QUESTION # 12
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 the employees with salaries and bonuses
C. Returns only employees with duplicate employee IDs in both tables
D. Combines the salaries and bonuses for employees, removing duplicates

Answer: A

NEW QUESTION # 13
What will the following SQL query return?
SELECT TRUNC(15.678, 2) AS truncated_value FROM dual;

A. 15.68
B. 15.67
C. 15.6
D. 15.678

Answer: B

NEW QUESTION # 14
Which of the following statements creates an ascending sequence starting at 100 and incrementing by 10?

A. CREATE SEQUENCE seq_1 START WITH 10 INCREMENT BY 100;
B. CREATE SEQUENCE seq_1 START WITH 100 INCREMENT BY 10;
C. CREATE SEQUENCE seq_1 START WITH 10 INCREMENT BY -100;
D. CREATE SEQUENCE seq_1 START WITH 100 INCREMENT BY -10;

Answer: B

NEW QUESTION # 15
What is the output of the following query?
SELECT CURRENT_DATE FROM dual;

A. The current date in the session time zone
B. The current date and time in UTC
C. The current date in the database time zone
D. The current date and time in the database time zone

Answer: A

NEW QUESTION # 16
What is the default order of evaluation when multiple SET operators are used in a query?

A. INTERSECT, MINUS, UNION
B. UNION, MINUS, INTERSECT
C. UNION, INTERSECT, MINUS
D. INTERSECT, UNION, MINUS

Answer: D

NEW QUESTION # 17
......

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