When you need a managed database in Azure, you're faced with a variety of choices. Is your data relational or not? Do you want SQL Database, PostgreSQL, or MySQL? What is Cosmos DB and why does it have five APIs? When should you use Azure Cache for Redis? Do all of these database options have the same compute and storage options? Do they provide the PaaS management tasks you want?

With a decade of Azure data experience behind me, let me guide you through the questions to ask to determine which Azure database to choose for your applications, so you can save time, money, and frustration in the long run.