Open Source C# Object-Relational Mapping (ORM) Software for Windows

Realm is a fast, scalable alternative to SQLite with mobile to cloud data sync that makes building real-time, reactive mobile apps easy. Build data-rich apps without draining device resources with Realm's lazy loading and zero-copy architecture. The object-oriented data model lets developers work directly with native objects – no ORMs or DAOs are needed. Real-time mobile to cloud data sync makes it easy to build interactive features that keep data up-to-date across multiple devices, users, and the backend. Accelerate time-to-market with easy to learn, language-native APIs that simplify data access. Device Sync, backed by MongoDB Atlas, handles the most complex part of connecting your client to the backend with ease – guaranteeing an app that works as expected and syncs data reliably, every time. Build full mobile apps with ease.

NHibernate.BusinessObjects is an easy to use business layer that wraps the object-relational mapper (ORM) NHibernate. NHBO is designed for Winforms and WPF applications. Visit http://nhbusinessobj.sourceforge.net to get more information.

EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations. Entity Framework Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations. EF Core works with many databases, including SQL Database (on-premises and Azure), SQLite, MySQL, PostgreSQL, and Azure Cosmos DB. To install EF Core, you install the package for the EF Core database provider(s) you want to target. This tutorial uses SQLite because it runs on all platforms that .NET Core supports. This application intentionally keeps things simple for clarity. Connection strings should not be stored in the code for production applications. You may also want to split each C# class into its own file. Query and manage relational data in a .NET Core app with an Object-Relational Mapper (O/RM).

This app will read an Entity Framework edmx file (currently tested with V5 of EF) and show all of the stored procedures, the conceptual functions, and the mappings between the two. If there are any procedures or functions that are not mapped, those will be listed as well. This tool was built to identify mapping issues when using Entity Framework with existing stored procedures.

A Mapping generator for NHibernate (NH) via FluentNH and NH.Burrows. Generate source code in C# to access MySql or SQL Server dbs. VB.Net may be supported eventually. See Develop > News menu for updates and release notes.

Yet Another Persistance System is a framework for object persistance in C# that stores wide class of C# objects into a relational database without a need for ANY REDUNDANT CODING, such as object-table maping, writing SQL commands etc.

doPersistence is a C# dll that persists any object to any database. Will save directly to tables with dynamic Sql or it will map to stored procedures (store, load, delete, list). For single objects add a class attribute: [Persistable("Customer", "CustomerId", true)] public class Customer { ... For list objects, inherit from a generic list: public class CustomerList : PersistentList<Customer> Bulk storage is extremely fast with data pagination available on loads. ~10,000 objects/second. ~2,000 objects/second if loaded one row at a time. See website for example code. Or download zip file for working copy.

Persism is a wood simple, auto discovery, auto configuration, and convention over configuration ORM (Object Relational Mapping) library for Java and .NET.