PostgreSQL...Introduction...Npgsql.EntityFramework... is an Entity Framework provider built on top of Npgsql. It allows you to use the EF with PostgreSQL. It mostly behaves like any other EF provider (e.g., SQL Server)...How to Use PostgreSQL Database Provider...To use PostgreSQL database provider, the first step is to install ...Npgsql.EntityFramework... NuGet package....Now to use Entity Framework with PostgreSQL database, add connection string and PostgreSQL provider for EF6 in configuration ...