xtensive 

DataObjects.Net is the object-relational mapper (ORM) and business logic layer (BLL) framework

Adds support for bulk insert, update and delete operations for DataObjects.Net-powered domain models

Adds support for reprocessable operations for DataObjects.Net-powered projects

Adds tracking functionality for DataObjects.Net-powered projects

Adds support for PostgreSQL to DataObjects.Net

Adds support for MS SQL Server to DataObjects.Net

Adds integration with ASP.NET for DataObjects.Net-powered projects

Adds support for MySQL to DataObjects.Net

Adds support for Oracle database to DataObjects.Net

Adds support for Firebird to DataObjects.Net

Adds support for SQL Server CE 3.5 for DataObjects.Net

Adds security layer for DataObjects.Net-powered projects

Adds support for SQLite to DataObjects.Net

Adds support for easy localization for DataObjects.Net-powered domain models

Adds support for logging via NLog for DataObjects.Net

Adds support for logging via log4net for DataObjects.Net

Adds DataObjects.Net configuration template and configuration file schema

Adds support for logging via log4net for DataObjects.Net

DataObjects.Net Core is the object-relational mapper (ORM) and business logic layer (BLL) framework

Adds tracking functionality for DataObjects.Net Core-powered projects