Top 20 NuGet database Packages

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Additional persistence provider for NEventStore using RavenDB.
A Micro-ORM for Apache Cassandra.
Portable cross-platform ADO-style SQLite library enabling table-record-level and table-column-level encryption. *Please see the project site for details about what this library does, and how to use it.*
.NET Utils Framework
This library makes working with LINQ to MongoDB queries easier from C#. Specificially it is for debugging and runtime inquiry of LINQ queries. There are two basic use cases: (1) Explain a LINQ query (does it use an index for example?). (2) Convert a LINQ query to the JavaScript code run in MongoDB.
Common nuget package required for TrackerEnabledDbContext & TrackerEnabledDbContext.Identity
The seventh version of the configuration-less, dynamic and self-adaptive database-first oriented Kerosene ORM library, with real full support for POCO objects, natural SQL-like syntax from plain C#, and advanced maps and lazy properties.
Mongo appender for Log4net
A base class library for querying and manipulating SQL databases.
A database solution allowing for an easy way to store any object as a flat file in either json, bson or encrypted bson format.
Contains interfaces that define persistence-specific functionality
Contains a library that implements Psns.Common.Persistence.Definitions with Entity Framework
Using RavenDB Our Way
SqlServer 2008, 2012 and 2014 support for the seventh version of the configuration-less, dynamic and self-adaptive database-first oriented Kerosene ORM library, with real full support for POCO objects, natural SQL-like syntax from plain C#, and advanced maps and lazy properties.
The EfNewWebDbConnector is a .NET library used to create and maintain only an unique connection to the database per request in the Asp.Net web applications using EF New DbContext ORM.
The EfOldWebDbConnector is a .NET library used to create and maintain only an unique connection to the database per request in the Asp.Net web applications using EF Old ObjectContext ORM.
The Linq2SqlWebDbConnector is a .NET library used to create and maintain only an unique connection to the SQL Server database per request in the Asp.Net web applications using Linq To Sql ORM.
The SqlAdoWebDbConnector is a .NET library used to create and maintain only an unique connection to the SQL Server database per request in the Asp.Net web applications using Ado.Net.
Support for this package is discontinued. I recommend you don't use. EgoDB is a Solid, Professional, and easy to use Document Database