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Oracle Database 23ai SQL Associate Sample Questions:

1. What is the purpose of using external tables in Oracle Database?

A) To store backup copies of database tables
B) To improve the performance of complex queries
C) To create temporary tables for session-specific data
D) To manage data stored in external files using SQL

2. What happens when the maximum value of a sequence is reached?

A) The sequence starts decrementing values.
B) The sequence resets to the starting value if the CYCLE option is specified.
C) The sequence stops generating values.
D) An error is raised, and the sequence must be recreated.

3. Which of the following is an example of an object privilege?

A) SELECT ON table_name
B) CREATE TABLE
C) ALTER USER
D) DROP DATABASE

4. What does the following query return?
SELECT department_id FROM departments
INTERSECT
SELECT department_id FROM employees;

A) All department IDs from the employees table
B) Department IDs that exist in both the departments and employees tables
C) All department IDs from the departments table
D) Department IDs that exist only in the employees table

5. What is the default order of evaluation when multiple SET operators are used in a query?

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

Solutions: