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Oracle 1Z0-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. Which statement can be used to undo changes made in a transaction?

A) COMMIT
B) ROLLBACK
C) SAVEPOINT
D) MERGE

2. What is a SELF JOIN in SQL?

A) A join between tables with identical structures
B) A join used for Cartesian products
C) A join of a table with itself
D) A join that does not require a WHERE clause

3. What is the purpose of the SAVEPOINT statement?

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

4. 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 used for joining two or more tables
D) A query inside another query

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

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

Solutions: