While Databricks supports SQL queries, it's different from traditional relational databases. It's designed for big data and cloud environments, offering more scalability and handling unstructured or semi-structured data efficiently.

Yes, Databricks supports real-time data processing and querying, often used for streaming analytics and real-time dashboards.

Delta Lake is an open-source storage layer that brings reliability to Data Lakes. It provides ACID transactions and scalable metadata handling. In Databricks, SQL can be used to query and manage data stored in Delta Lake.

Typically, no installation is needed as Databricks is a cloud-based service. You can access it through a web browser.

This courses on Databricks include hands-on labs and exercises, allowing learners to practice SQL queries and concepts in a real Databricks environment.

Datasets may be provided within the course environment or you might be guided on how to import or access public datasets.

Prerequisites vary, but a basic understanding of SQL and data concepts is usually recommended.

Databricks offers a free tier or community edition which is often suitable for learning and experimenting.

You can query various data sources including cloud storage services, databases, and data lakes. Databricks is designed to be compatible with multiple data formats and sources.

Databricks provides robust security features including network security, data encryption, and access controls to ensure data security and privacy compliance.

Access to lectures and assignments depends on your type of enrollment. If you take a course in audit mode, you will be able to see most course materials for free. To access graded assignments and to earn a Certificate, you will need to purchase the Certificate experience, during or after your audit. If you don't see the audit option:

• The course may not offer an audit option. You can try a Free Trial instead, or apply for Financial Aid.

• The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.

When you purchase a Certificate you get access to all course materials, including graded assignments. Upon completing the course, your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free.

You will be eligible for a full refund until two weeks after your payment date, or (for courses that have just launched) until two weeks after the first session of the course begins, whichever is later. You cannot receive a refund once you’ve earned a Course Certificate, even if you complete the course within the two-week refund period. See our full refund policy.