Oracle Database 23ai SQL Associate exam pdf guide & 1Z1-171 prep sure exam

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Oracle 1Z1-171 Exam Syllabus Topics:

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

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Oracle Database 23ai SQL Associate Sample Questions (Q62-Q67):

NEW QUESTION # 62
What will the following query do?
DELETE FROM employees
WHERE department_id = 20;

A. Raise an error because DELETE cannot use a WHERE clause
B. Delete all rows in the employees table
C. Delete all rows where department_id is 20
D. Delete the department_id column in the employees table

Answer: C

NEW QUESTION # 63
Which of the following SQL commands retrieves data from a relational database?

A. UPDATE
B. SELECT
C. INSERT
D. DELETE

Answer: B

NEW QUESTION # 64
What does the following SQL statement do?
SELECT e.employee_id, d.department_name
FROM employees e
JOIN departments d ON e.department_id = d.department_id;

A. Retrieves employees and departments with matching department_id
B. Retrieves all employees and their departments
C. Retrieves only employees without departments
D. Retrieves only departments with no employees

Answer: A

NEW QUESTION # 65
What does the following command do?
GRANT CREATE SESSION TO user_name;

A. Assigns the user to a specific role
B. Grants the user the ability to connect to the database
C. Allows the user to create new sessions for other users
D. Allows the user to create database objects

Answer: B

NEW QUESTION # 66
How are NULL values treated in relational databases?

A. NULL values are not allowed in relational databases.
B. NULL values are treated as empty strings.
C. NULL values represent missing or unknown data.
D. NULL values are treated as zero.

Answer: C

NEW QUESTION # 67
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