Explore techniques for achieving atomicity and consistency between message queues and databases in modern application development. Learn how to synchronize database transactions with messaging activities, crucial for scenarios like updating order statuses while triggering payments or modifying bookings and sending confirmation emails. Delve into various approaches, considerations, and real-world experiences, highlighting different methods along with their advantages and disadvantages. Gain insights from practical use cases drawn from actual projects, illustrating the effective application of each approach. This 34-minute conference talk from Devoxx provides valuable knowledge for engineers facing the challenge of coordinating database and messaging system operations in their applications.