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Oracle 1Z0-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

Question 1

Which clause can be used with SET operators to sort the final result set?

A. GROUP BY
B. HAVING
C. ORDER BY
D. WHERE

Question 2

What is a SELF JOIN in SQL?

A. A join used for Cartesian products
B. A join between tables with identical structures
C. A join of a table with itself
D. A join that does not require a WHERE clause

Question 3

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. A syntax error
C. Concatenated first and last names without spaces
D. Concatenated first and last names with spaces in between

Question 4

Which of the following is true about foreign key constraints in SQL?

A. They ensure that a column only contains NULL values.
B. They define a relationship between two tables.
C. They enforce the uniqueness of values in a column.

Question 5

What does the following SQL query do?
SELECT * FROM employees WHERE salary > 5000 ORDER BY department_id;

A. Retrieves employees with salary less than 5000, sorted by department ID
B. Retrieves all employees with a salary greater than 5000, sorted by salary in ascending order
C. Retrieves all employees, sorted by department ID
D. Retrieves all employees with a salary greater than 5000, sorted by department ID in ascending order

Solutions: