Oracle 1Z1-171 : Oracle Database 23ai SQL Associate

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Oracle Database 23ai SQL Associate Sample Questions:

1. In a relational database, what is a foreign key?

A) A unique identifier for a record in a table
B) A temporary key generated during query execution
C) A key used to sort data in a specific order
D) A key that is used to establish a relationship between two tables

2. What does the following query return?
SELECT employee_id
FROM employees
WHERE department_id IN (SELECT department_id FROM departments WHERE location_id = 1000);

A) Employees with salaries greater than 1000
B) Employees working in location ID 1000
C) Departments located in location ID 1000
D) Employees with no department

3. Which SET operator returns rows from the first query that are not present in the second query?

A) INTERSECT
B) MINUS
C) UNION ALL
D) UNION

4. Which command would drop an index from a table?

A) DELETE INDEX
B) DROP INDEX
C) TRUNCATE INDEX
D) REMOVE INDEX

5. Which command revokes a user's privilege to update a table?

A) REVOKE UPDATE ON table_name FROM user_name;
B) REMOVE UPDATE ON table_name FROM user_name;
C) DENY UPDATE ON table_name FROM user_name;
D) DELETE UPDATE ON table_name FROM user_name;

Solutions: