Latest 1Z1-171 Test Questions & 1Z1-171 Braindumps

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Oracle 1Z1-171 Exam Syllabus Topics:

Section	Objectives
Data Definition Language (DDL)	- Schema objects 1. Views and indexes 2. Tables and constraints
Advanced SQL Features	- Set operators and functions 1. UNION, INTERSECT, MINUS 2. Single-row and group functions - Aggregations and grouping 1. Aggregate functions 2. GROUP BY and HAVING
Retrieving Data Using SQL	- SELECT statements 1. Filtering with WHERE clause 2. Sorting results with ORDER BY 3. Column selection and expressions - Joins and Subqueries 1. Correlated and non-correlated subqueries 2. Inner and outer joins
Relational Database Concepts	- Database fundamentals and relational model 1. Entity relationships and normalization basics 2. Tables, rows, columns, and keys
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 (Q85-Q90):

NEW QUESTION # 85
What is the purpose of a correlated subquery?

A. A subquery that combines data from multiple tables
B. A subquery that references columns from the outer query
C. A subquery that depends on the result of another subquery
D. A subquery that can be used only with aggregate functions

Answer: B

NEW QUESTION # 86
What will the following query result in?
SELECT e.employee_id, e.manager_id
FROM employees e
WHERE e.manager_id IS NOT NULL;

A. Employees who do not have managers
B. All employees and their IDs
C. Employees and their managers' IDs
D. Employees who have managers

Answer: D

NEW QUESTION # 87
What will the following SQL query do?
UPDATE employees
SET salary = salary * 1.1
WHERE department_id = 10;

A. Increase the salary of employees in department 10 by 10%
B. Set the salary to 1.1 for employees in department 10
C. Increase the salary of all employees by 10%
D. Decrease the salary of employees in department 10 by 10%

Answer: A

NEW QUESTION # 88
Which of the following data dictionary views provides information about constraints on tables?

A. All of the above
B. DBA_CONSTRAINTS
C. ALL_CONSTRAINTS
D. USER_CONSTRAINTS

Answer: A

NEW QUESTION # 89
What is required for the queries combined by a SET operator to work correctly?

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

Answer: C

NEW QUESTION # 90
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