Chinook is a sample database available for SQL Server, Oracle, MySQL, etc. It can be created by running a single SQL script.

Just as the name, it's an data access component. It provides a library of classes and a tool, using it in .net project can make data accessing more easily.

Data Access Engine (DAE) is an open source and free .NET component to access all popular DBMSs such as Microsoft SQL Server, MySQL, Oracle, Microsoft Access, SQLite and databases that connected by ODBC. DAE helps to connect different DBMSs at the same time.

This project is actually a combination of several individual projects, which, provide individual, easy to use, data access layers for a number of popular databa

PowerDoc is a collaborative database documentation tool which can be used to create accurate, professional quality database documentation. It keeps an audit of the documentation, so that it is easy to track the changes.

DbEntry.Net (Leafing Framework) is a lightweight, high performance ORM compnent for .Net. It provides MVC, IoC framework as well.

The utility is an Excel workbook for designing databases, supports MySQL, Oracle, PostgreSQL, SQLite and SQL Server.

A collection of cross vendor database interface classes for .NET written in C# providing a consistent and simplified way of accessing SQL Server, SQL Server CE,Oracle,Access,Access 2007,MySql,DB2,Visual FoxPro,dBASE,Paradox,Pervasive,Firebird,VistaDB and Postgresql databases.

D.NET (DDotNet) is a "Development for .NET" framework, created to help all developers to create a better applications. Contains a implementation of ORM (Object Relational Mapping) framework with Business Objects Framework and other components.

这是一个简单方便的数据库访问组件，支持MongoDB和所有RDBMS。

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Libreria MySql C#

Framework for RAD against relational database (and xml), using a sophisticated, easy-to-use OO model (3-tier). Supports multiple database platforms. Uses generics and partial classes. Supports ADO transactions (doesnt require MSDTC). Includes a winforms Class Generatator for auto

Database access that just works

SiLL has been moved - https://github.com/MattStypa/SiLL/

D.E.M.O.N SQL Database Installer is an Un-SQL(SQL means boring here) Database server installer for many types of Database :MySQL, FireBird, SQLite and others.

VisualDB is a Database Management created using Visual WebGui and actually support SQL Server 2000-2005 and MySQL 5.

Zebra_Database it is an advanced, compact (one-file only), lightweight, MySQL database wrapper built upon PHP's MySQL extension. It provides methods for interacting with MySQL databases that are more powerful and intuitive to use than PHP's default ones. It supports transactions and provides ways for caching query results either by saving cached data on the disk, or by using memcache.