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Oracle 1Z1-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. 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 only employees without departments
C) Retrieves only departments with no employees
D) Retrieves all employees and their departments

2. 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) Employee IDs from department 10
C) Employees with salaries greater than 10
D) All employee IDs

3. What happens if a DELETE statement is executed without a WHERE clause?

A) An error is raised.
B) No rows are deleted.
C) All rows in the table are deleted.
D) Only the first row is deleted.

4. Which command creates a new role in Oracle Database?

A) CREATE NEW ROLE role_name;
B) ADD ROLE role_name;
C) CREATE ROLE role_name;

5. Which function is used to convert a string to uppercase in SQL?

A) CONVERT_UPPER
B) TO_UPPERCASE
C) CASE_UPPER
D) UPPER

Solutions: