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Oracle Database 23ai SQL Associate Sample Questions:

1. What is a role in Oracle Database?

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

2. What does the COMMIT statement do in SQL?

A) Saves all pending changes to the database permanently
B) Begins a new transaction
C) Rolls back changes to a previous state
D) Discards all pending changes in the transaction

3. What is the primary purpose of a primary key in a relational database?

A) To uniquely identify each record in a table
B) To establish relationships between tables
C) To sort data in ascending order
D) To store duplicate data in a table

4. Which of the following is a valid reason to create a synonym?

A) To enforce unique constraints on a table
B) To provide simplified and consistent access to an object
C) To improve query performance
D) To automatically generate numeric values for a column

5. What is a subquery in SQL?

A) A query that combines data from multiple tables
B) A query used to create a table
C) A query inside another query
D) A query used for joining two or more tables

Solutions: