Data Engineering Associate with Databricks Practice Exam

Does ACID properties ensure that multiple records can be inserted in a single transaction?

1. No

2. Yes

3. Only in certain cases

4. It depends on the database system

The correct answer is: Yes

The ACID properties—Atomicity, Consistency, Isolation, and Durability—are fundamental principles that ensure reliable processing of transactions in a database. When we talk about inserting multiple records in a single transaction, the atomicity aspect of ACID is particularly relevant. Atomicity guarantees that a series of operations within a transaction are treated as a single unit. This means that either all operations in the transaction are successfully executed, or none are. Therefore, when multiple records are inserted together in a single transaction, it can either fully occur or have no record changes if any part of the transaction fails. This ensures that the database remains in a consistent state. Additionally, the other ACID properties support the integrity and reliability of multi-record transactions. Consistency ensures that the database transitions from one valid state to another. Isolation maintains that concurrent transactions do not interfere with each other, ensuring that the multi-record transaction behaves predictably even when other transactions are taking place. Durability ensures that once a transaction has been committed, it will remain so, even in the event of a system failure. In summary, the assertion that ACID properties allow multiple records to be inserted in a single transaction is grounded in the concept of atomicity, where either all records are successfully