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Oracle 1Z0-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. What does the INTERSECT operator do in SQL?

A) Returns rows that are present in both queries
B) Combines all rows from two queries without any conditions
C) Combines rows from two queries and includes all duplicates
D) Returns rows from the first query that are not present in the second query

2. Which of the following ensures that a relational database enforces data integrity?

A) Hierarchical data organization
B) Constraints such as primary keys, foreign keys, and unique constraints
C) Indexes on all columns
D) Redundant data storage

3. Which type of join retrieves only the rows with matching values in both tables?

A) OUTER JOIN
B) INNER JOIN
C) CROSS JOIN
D) NATURAL JOIN

4. What does the following SQL statement do?
CREATE TABLE employees (
employee_id NUMBER PRIMARY KEY,
first_name VARCHAR2(50),
hire_date DATE NOT NULL
);

A) Creates a table with only VARCHAR2 and DATE columns
B) Creates a table with a primary key and a NOT NULL constraint
C) Creates a table with no constraints
D) Creates a temporary table

5. What is a role in Oracle Database?

A) A database object used to enforce constraints
B) A set of privileges that can be granted to users or other roles
C) A predefined SQL statement stored in the database
D) A user-defined function

Solutions: