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Oracle 1Z1-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. What does the NEXTVAL pseudocolumn do in SQL?

A) Resets the sequence to its starting value
B) Deletes the sequence from the database
C) Retrieves the current value of a sequence without incrementing it
D) Retrieves the next value in a sequence and increments the sequence

2. How is the LOCALTIMESTAMP function different from CURRENT_TIMESTAMP?

A) LOCALTIMESTAMP does not include fractional seconds, while CURRENT_TIMESTAMP does.
B) LOCALTIMESTAMP omits time zone information, while CURRENT_TIMESTAMP includes it.
C) Both functions are identical in output.
D) LOCALTIMESTAMP returns only the date, while CURRENT_TIMESTAMP returns the date and time.

3. What does the following SQL query return?
SELECT employee_id, salary * 12 AS annual_salary FROM employees;

A) Monthly salaries of all employees
B) Employee IDs and their annual salaries
C) Salaries multiplied by 12 and stored in a new table
D) Only employees with salaries greater than 12

4. Which type of subquery returns exactly one value?

A) Correlated subquery
B) Multiple-row subquery
C) Scalar subquery
D) Inline view

5. What does the following command do?
GRANT CREATE SESSION TO user_name;

A) Allows the user to create database objects
B) Assigns the user to a specific role
C) Allows the user to create new sessions for other users
D) Grants the user the ability to connect to the database

Solutions: