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

2. Which type of privilege allows a user to perform administrative tasks, such as creating other users?

A) Table privilege
B) System privilege
C) Schema privilege
D) Object privilege

3. Which type of join returns all rows from the left table, even if there are no matches in the right table?

A) INNER JOIN
B) LEFT OUTER JOIN
C) FULL OUTER JOIN
D) RIGHT OUTER JOIN

4. What is the result of the following query?
SELECT employee_id
FROM employees
WHERE EXISTS (SELECT 1 FROM departments WHERE department_id = 10);

A) Employee IDs from departments with no employees
B) All employee IDs
C) Employee IDs from department 10
D) Employees with salaries greater than 10

5. What will the following SQL statement output?
SELECT first_name || ' ' || last_name AS full_name FROM employees;

A) Only the first names of employees
B) Concatenated first and last names with spaces in between
C) Concatenated first and last names without spaces
D) A syntax error

Solutions: