Explore the diverse world of databases in this comprehensive 47-minute talk by Amanda Moran, an Independent Advocate. Delve into the history of databases, focusing on open-source solutions, and gain insights into various database types including relational, NoSQL, and graph databases. Learn when to use each type, their advantages, and potential drawbacks. Understand the importance of database selection in different scenarios, with a special emphasis on high availability needs. Compare and contrast relational, NoSQL, and graph databases to make informed decisions for your projects. Discover why database knowledge is crucial in today's technology landscape and how it can impact your work.