AWS, JavaScript, React - Deploy Web Apps on the Cloud - Database Transaction Standards (ACID Versus CAP)

The video tutorial discusses the differences between SQL and NoSQL databases, focusing on the ACID principles for relational databases and the CAP theorem for non-relational databases. It explains the ACID principles: Atomicity, Consistency, Isolation, and Durability, highlighting their importance in ensuring reliable database transactions. The tutorial also covers constraints and isolation in database management systems, emphasizing their role in maintaining data integrity. Finally, it concludes with a brief overview of durability and its significance in preserving data during system failures.

What is one of the main differences between SQL and NoSQL databases?

• SQL databases use the ACID standard.

• NoSQL databases use the ACID standard.

• SQL databases use the CAP theorem.

• NoSQL databases do not follow any standard.

What does the 'A' in ACID stand for?

• Adaptability

• Availability

• Atomicity

• Accessibility

Which ACID principle ensures that a transaction is either fully completed or not at all?

• Consistency

• Durability

• Atomicity

• Isolation

How does the 'Isolation' principle in ACID affect transactions?

• It prevents transactions from being rolled back.

• It makes transactions visible to all users immediately.

• It ensures transactions are processed independently.

• It allows transactions to read data from other transactions.

What is the focus of the next lecture after discussing ACID principles?

• Advanced SQL queries

• The CAP theorem

• The structure of SQL databases

• Database security measures