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Oracle Database 23ai SQL Associate Sample Questions:

1. What is a role in Oracle Database?

A) A predefined SQL statement stored in the database
B) A database object used to enforce constraints
C) A user-defined function
D) A set of privileges that can be granted to users or other roles

2. Which of the following statements is true about constraints in Oracle Database?

A) Constraints are automatically dropped when rows are deleted.
B) Constraints can only be added when creating a table.
C) Constraints can be added or modified using the ALTER TABLE statement.
D) Constraints cannot reference other tables.

3. What is the primary purpose of an index in SQL?

A) To ensure uniqueness of values in a column
B) To improve the performance of data retrieval queries
C) To store metadata about a table
D) To enforce data integrity constraints

4. What is the purpose of the SAVEPOINT statement?

A) To set a point within a transaction to which a rollback can occur
B) To restart a transaction
C) To delete data temporarily
D) To save changes permanently

5. What does the INTERSECT operator do in SQL?

A) Combines rows from two queries and includes all duplicates
B) Returns rows that are present in both queries
C) Returns rows from the first query that are not present in the second query
D) Combines all rows from two queries without any conditions

Solutions: