Open Source in Azure

Azure isn't just for SQL Server. It offers world-class managed services for PostgreSQL and MySQL.

1. Flexible Server

The **Flexible Server** architecture is the modern standard. It provides a dedicated virtual machine to run your database, giving you more control over the engine versions and the underlying ecosystem. It also supports **Stop/Start** functionality to save costs on non-production environments.

2. Why PostgreSQL for .NET?

PostgreSQL is widely considered the most 'Advanced' open-source database. It has incredible support for JSONB (Document storage inside SQL) and specialized indexing. Combined with the **Npgsql** Entity Framework provider, it's a powerful and cost-effective alternative to SQL Server.

3. Architect Insight

Q: "How do I handle high availability for Postgres?"

Architect Answer: "Enable **Zone Redundant High Availability**. Azure will automatically create a 'Standby' server in a different Availability Zone and keep the data synchronized. If the primary goes down, the standby takes over in seconds. This is your insurance policy for mission-critical open-source data."