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Oracle Database 23ai SQL Associate Sample Questions:

1. Which SQL function can be used to replace NULL values with a specified value?

A) NVL
B) COALESCE
C) REPLACE
D) ISNULL

2. Which SQL JOIN keyword retrieves all rows from both tables, including those without matches?

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

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

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

4. What does the NEXTVAL pseudocolumn do in SQL?

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

5. Which clause is used to allow a user to grant a privilege to others?

A) WITH SHARE OPTION
B) WITH ADMIN OPTION
C) WITH GRANT OPTION
D) WITH SELECT OPTION

Solutions: