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Oracle 1Z0-171 Exam Syllabus Topics:

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

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Oracle Database 23ai SQL Associate Sample Questions (Q90-Q95):

NEW QUESTION # 90
Which SQL keyword is used to define a substitution variable in a SQL statement?

A. SUBSTITUTION
B. SET
C. DEFINE
D. VAR

Answer: C

NEW QUESTION # 91
What type of join does the following query perform?
SELECT *
FROM employees e, departments d
WHERE e.department_id = d.department_id;

A. NATURAL JOIN
B. OUTER JOIN
C. CROSS JOIN
D. EQUI JOIN

Answer: D

NEW QUESTION # 92
Which function is used to extract the year from a date in SQL?

A. YEAR(date)
B. EXTRACT(YEAR FROM date)
C. GET_YEAR(date)
D. TO_YEAR(date)

Answer: B

NEW QUESTION # 93
What happens when the maximum value of a sequence is reached?

A. The sequence resets to the starting value if the CYCLE option is specified.
B. An error is raised, and the sequence must be recreated.
C. The sequence starts decrementing values.
D. The sequence stops generating values.

Answer: A

NEW QUESTION # 94
What is required for the queries combined by a SET operator to work correctly?

A. Both queries must use the GROUP BY clause.
B. The result sets must have the same number of columns and compatible data types.
C. The tables must be joined using a primary key.
D. Both queries must include the WHERE clause.

Answer: B

NEW QUESTION # 95
......

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