求可查看、下载、编辑及运行的开源EF6 Provider（Connector）可运行代码

Hey there! Great question—diving into the EF6 Provider model is a deep but rewarding rabbit hole, and having working open-source code to tinker with makes all the difference. Here are some top open-source EF6 Providers (Connectors) you can inspect, download, edit, and run directly:

• MySQL Connector/NET (EF6 Support)
  This is one of the most widely used EF6 providers for MySQL. Its fully open-source codebase includes complete implementations of DbProviderServices and related service overrides. You can clone the repo, build it locally, and modify it to test your own provider logic. You’ll find clear examples of how to register services via DbProviderServices.GetService and override default EF6 behaviors to handle MySQL-specific features.

• PostgreSQL Npgsql EF6 Provider
  The Npgsql team maintains a dedicated EF6 provider for PostgreSQL. The repo has well-organized code that walks you through everything from setting up provider services to handling PostgreSQL’s unique data types and query translations. It’s an excellent reference for understanding how to map EF6 abstractions to a non-Microsoft database system.

• SQLite EF6 Provider
  The official SQLite EF6 provider (part of the SQLite.NET ecosystem) is open-source and lightweight, but covers all core provider model concepts. You’ll see how to implement DbProviderServices, register custom type mappings, and override query generation logic tailored to SQLite’s capabilities. It’s perfect if you want a smaller codebase to start your exploration with.

• Start your deep dive with the DbProviderServices implementation class in each project—this is where the service registration and override logic via GetService lives.
• Most of these providers include sample projects or test suites that you can run directly to see the provider in action with a real database.
• Don’t be afraid to tweak small parts of the code (like adding a custom service override) and rebuild to test how EF6 reacts—hands-on experimentation is the best way to cement your understanding.

内容的提问来源于stack exchange，提问作者user786