.NET DATABASE PROVIDERS

dotConnect Download, Features, Setup, and Alternatives: Complete .NET Database Provider Guide

If you’ve ever spent an afternoon fighting a broken connection string just to get your .NET app talking to Oracle or PostgreSQL, you already know why a solid ADO.NET data provider matters. dotConnect, built by Devart, is one of the most widely used commercial provider suites for exactly that job. This guide walks through what dotConnect actually does, how it compares to native drivers like Npgsql or ODP.NET, how to install and configure it, and when a free alternative might serve you just as well.

By the end, you’ll know whether dotConnect belongs in your next .NET project — and how to get it running in under ten minutes.

What Is dotConnect and How Does It Work?

What Is dotConnect for .NET?

dotConnect is a family of enhanced ADO.NET data providers from Devart, each built for a specific database engine — Oracle, MySQL, PostgreSQL, SQLite, SQL Server, DB2, and even cloud services like Salesforce. Instead of using a bare-bones driver, dotConnect wraps the connection layer with extra tooling: Entity Framework support, LINQ querying, a visual model designer, and built-in performance monitoring.

Think of it as the difference between a stock car and one with a tuned engine. Both get you to the database, but one gives you more control along the way.

How Does dotConnect Work as an ADO.NET Provider?

At its core, dotConnect implements the standard ADO.NET interfaces — DbConnection, DbCommand, DbDataReader, and so on — so it slots into existing .NET code with minimal friction. Underneath, it manages the actual network protocol talking to your database (Oracle’s TNS, MySQL’s wire protocol, PostgreSQL’s frontend/backend protocol) directly, without requiring a separate native client library in most cases.

dotConnect vs a Standard .NET Data Provider

A standard provider, like System.Data.SqlClient or Npgsql, focuses on raw connectivity. dotConnect adds a layer on top: Entity Framework and EF Core integration, LinqConnect (Devart’s own LINQ to SQL-style ORM), connection pooling tuning, SQL tracing, and a design-time Entity Developer tool for visually building data models.

What Is an ADO.NET Provider?

An ADO.NET provider is the bridge between your .NET application and a specific database engine. It translates .NET data access calls into the database’s native protocol and hands results back as familiar objects like DataReader or DataSet.

What Is a .NET Database Provider?

This term is often used interchangeably with “ADO.NET provider.” It simply means a library that lets .NET code read from and write to a particular database — whether that’s a relational engine like SQL Server or a document store.

dotConnect ADO.NET and .NET Data Access

Because dotConnect implements the full ADO.NET provider model, any code pattern that works with SqlConnection — such as executing commands, filling datasets, or wiring up data-bound controls — works nearly identically with a dotConnect connection object.

Database Connectivity and Data Access in .NET

Good database connectivity in .NET comes down to three things: a stable protocol implementation, sensible connection pooling, and ORM compatibility. dotConnect was built with all three in mind, which is part of why it’s stuck around since the mid-2000s.

It’s also worth understanding what “data access” actually covers in a modern .NET app. It’s not just opening a connection and running a query — it includes mapping rows to objects, managing transactions across multiple statements, handling retries when a network blip drops a connection, and keeping query performance visible to the team. A provider that only handles the first part pushes the rest of that work onto your own code. dotConnect tries to absorb more of that responsibility so your application layer stays cleaner.

For developers coming from a single-database background — say, someone who has only ever worked with SQL Server — switching to Oracle or PostgreSQL can feel disorienting. Each engine has its own quirks: Oracle’s sequences instead of auto-increment columns, PostgreSQL’s strict type casting, MySQL’s historical differences in string comparison behavior. A well-built provider smooths over some of that friction by exposing consistent .NET types and predictable error messages, rather than surfacing raw driver-level exceptions that are hard to interpret.

dotConnect Features

ADO.NET Data Provider and Database Connectivity

Every dotConnect edition ships as a native ADO.NET provider — no ODBC bridge, no extra native client install required for most databases, which simplifies deployment considerably.

Entity Framework and EF Core Support

dotConnect providers plug directly into both Entity Framework 6 and EF Core, supporting code-first, database-first, and model-first workflows.

LINQ and LINQ to Entities

You get full LINQ to Entities support through EF, plus Devart’s own LinqConnect ORM for lighter-weight LINQ to SQL-style querying.

Stored Procedures and Database Commands

dotConnect handles stored procedures, functions, and packages (especially useful for Oracle), including support for output parameters and ref cursors.

Connection Pooling and Database Transactions

Built-in connection pooling reduces the overhead of repeatedly opening connections, and full transaction support — including distributed transactions in some editions — keeps multi-step operations consistent.

Batch Updates and Asynchronous Commands

Batch updates group multiple INSERT/UPDATE/DELETE statements into fewer round trips, and async command methods keep your app responsive under load.

SQL Monitoring and SQL Tracing

Through the companion dbMonitor tool, you can watch live SQL traffic generated by your application — handy for catching an N+1 query problem before it hits production.

Connection String Builder and Configuration

A dedicated connection string builder class helps you construct valid connection strings programmatically instead of hand-assembling error-prone text.

ORM and .NET Data Access Support

Beyond EF, dotConnect providers are commonly paired with Dapper and NHibernate, giving you flexibility in how much abstraction you want between your code and SQL.

Secure Connections: SSH and HTTP Tunneling

One feature that doesn’t get talked about enough is built-in tunneling support. dotConnect can route traffic through an SSH tunnel or HTTPS proxy instead of opening a database port directly to the internet. For teams managing a remote MySQL or PostgreSQL instance without a VPN already in place, this alone can simplify a security review considerably.

Local SQL Engine for Offline Development

Professional editions include a local SQL engine that can execute a subset of SQL against cached or offline data. This is useful for demo builds, disconnected desktop applications, or scenarios where a live database connection genuinely isn’t available but the app still needs to behave predictably.

dotConnect Database Providers

dotConnect Universal

This edition is aimed at teams building software that must support several database backends without maintaining separate codebases for each.

SQL Server and Other ADO.NET Data Providers

Devart also offers a dedicated SQL Server edition, though most developers use Microsoft’s own Microsoft.Data.SqlClient for SQL Server unless they specifically need dotConnect’s cross-database tooling consistency.

DB2 and Additional Database Connectivity Options

A DB2 edition rounds out enterprise coverage, along with providers for Salesforce, SugarCRM, and FreshBooks for teams integrating SaaS data sources into .NET apps.

dotConnect for Oracle: Oracle ADO.NET Provider

dotConnect for Oracle connects directly to Oracle Database and Oracle Cloud without requiring Oracle’s own client libraries installed on the machine — a genuine time-saver during deployment. It supports Entity Framework, EF Core, LinqConnect, PL/SQL stored procedures, and Oracle-specific types like CLOB, BLOB, and TIMESTAMP WITH TIME ZONE.

How to Connect Oracle Database Using C#

using Devart.Data.Oracle;

string connStr = "User Id=myuser;Password=mypass;Server=myserver:1521/orcl;";
using (var connection = new OracleConnection(connStr))
{
    connection.Open();
    using var cmd = new OracleCommand("SELECT * FROM employees", connection);
    using var reader = cmd.ExecuteReader();
    while (reader.Read())
    {
        Console.WriteLine(reader["employee_name"]);
    }
}

dotConnect for Oracle Download

You can download a 30-day trial or purchase a full license directly from Devart’s site, or pull the runtime package from NuGet for use in a project.

dotConnect for MySQL: MySQL ADO.NET Provider

dotConnect for MySQL supports MySQL 8.0 and later, MariaDB, Amazon RDS and Aurora, Azure Database for MySQL, and Percona Server. It includes SSH and HTTP tunneling for secure remote connections without exposing the database port directly.

How to Connect MySQL Database Using C#

using Devart.Data.MySql;

string connStr = "Server=localhost;Port=3306;Database=shop;User Id=root;Password=secret;";
using var connection = new MySqlConnection(connStr);
connection.Open();
using var cmd = new MySqlCommand("SELECT id, name FROM products", connection);
using var reader = cmd.ExecuteReader();

dotConnect for MySQL Download

A free Express edition covers basic connectivity, while the Professional edition unlocks Entity Framework, batch operations, and the local SQL engine.

dotConnect for PostgreSQL: PostgreSQL ADO.NET Provider

This edition targets PostgreSQL, Amazon RDS for PostgreSQL, and Azure Database for PostgreSQL. It supports advanced PostgreSQL data types such as arrays, JSON/JSONB, and range types — areas where some generic providers fall short.

How to Connect PostgreSQL Database Using C#

using Devart.Data.PostgreSql;

string connStr = "Host=localhost;Port=5432;Database=mydb;User Id=postgres;Password=secret;";
using var connection = new PgSqlConnection(connStr);
connection.Open();

dotConnect for PostgreSQL Download

Like MySQL, PostgreSQL also ships with a free Express edition, making it a reasonable starting point before committing to a paid license.

dotConnect for SQLite: SQLite ADO.NET Provider

dotConnect for SQLite is built for embedded and local-file database scenarios — desktop apps, mobile apps, or lightweight services that don’t need a full client-server database.

How to Connect SQLite Database to .NET

using Devart.Data.SQLite;

string connStr = "Data Source=mydatabase.db;";
using var connection = new SQLiteConnection(connStr);
connection.Open();

dotConnect for SQLite Download

Because SQLite doesn’t run as a server, this edition is lighter-weight overall, though EF Core support and the local SQL engine remain available in the Professional tier.

dotConnect and Entity Framework

dotConnect EF and Entity Framework 6

For teams still on classic Entity Framework 6, dotConnect providers register as EF6-compatible providers, meaning existing DbContext code generally needs only a connection string and provider name change to switch databases.

dotConnect EF Core Provider

EF Core support has matured steadily; current dotConnect versions track recent EF Core releases and support the Scaffold-DbContext command for reverse-engineering models from an existing database.

Oracle, MySQL, PostgreSQL, and SQLite EF Core Providers

All four major dotConnect editions ship matching EF Core providers, so a team using Oracle in production and SQLite in local dev testing can share nearly identical data-access code.

dotConnect, LINQ, Dapper, and ORM Support

dotConnect LINQ and LINQ to Entities

Beyond LINQ to Entities via EF, Devart’s LinqConnect gives you a lighter LINQ to SQL-compatible layer when full EF feels heavier than a project needs.

dotConnect Dapper Support

Because dotConnect providers implement standard ADO.NET interfaces, they work with Dapper out of the box — you get Dapper’s fast, low-overhead mapping combined with dotConnect’s provider-level features like connection pooling and SSH tunneling.

dotConnect NHibernate Support

NHibernate dialects exist for the major dotConnect providers as well, useful for legacy codebases already built around that ORM.

dotConnect Download and Installation

dotConnect Free Download and Trial

Every dotConnect edition offers either a free Express version (MySQL, PostgreSQL) or a 30-day full-featured trial (Oracle, SQLite, SQL Server, DB2). This lets you validate compatibility before purchasing.

dotConnect Installation Requirements

dotConnect supports .NET Framework 2.0 and up, .NET Core 1.0 and later, and modern .NET 5 through .NET 8+, along with Visual Studio integration for design-time tooling.

dotConnect License and Activation

Licenses are typically per-developer, with Standard and Professional tiers. After purchase, Devart emails a license number tied to your account, which you activate through the installed application or the Devart License Manager.

GETTING RUNNING IN UNDER TEN MINUTES

1. Install the NuGet packageAdd the provider package for your database — for example, Devart.Data.PostgreSql.
2. Build your connection stringUse the provider’s connection string builder class instead of hand-typing it.
3. Open a connection or register a DbContextUse the provider directly with ADO.NET, or point EF Core’s UseOracle()/UseMySql()-style method at it.
4. Watch traffic with dbMonitorConfirm the queries hitting the database look the way you expect.
5. Activate your licenseTrial editions prompt for activation after 30 days — do this through the Devart License Manager.

dotConnect NuGet and Visual Studio Integration

dotConnect NuGet Package

Each provider is distributed as its own NuGet package, so you only pull in the dependency you actually need:

dotnet add package Devart.Data.Oracle
dotnet add package Devart.Data.MySql
dotnet add package Devart.Data.PostgreSql
dotnet add package Devart.Data.SQLite

dotConnect EF Core NuGet Package

EF Core support ships as a companion package, for example Devart.Data.Oracle.EFCore, referenced alongside the base provider package.

dotConnect Visual Studio Extension

A Visual Studio extension adds design-time features: a connection dialog, a schema browser, and integration with the Entity Developer visual model designer for building EF models without hand-writing XML or code-first classes.

How to Set Up and Use dotConnect

dotConnect Connection String

A typical dotConnect connection string looks similar to a standard ADO.NET one, but with provider-specific keywords for pooling, SSH tunneling, or Direct mode (bypassing the native client). Using the built-in connection string builder class avoids typos:

var builder = new MySqlConnectionStringBuilder
{
    Server = "localhost",
    Database = "shop",
    UserId = "root",
    Password = "secret",
    Pooling = true
};

How to Use dotConnect with .NET and .NET Core

Once the NuGet package is referenced, register your DbContext in Startup.cs or Program.cs exactly as you would with any EF Core provider, pointing UseOracle(), UseMySql(), or the equivalent method at your connection string.

dotConnect ADO.NET Database Access

ADO.NET Connection Pooling

Pooling is enabled by default in most dotConnect providers and can be tuned via connection string parameters like minimum and maximum pool size, reducing connection churn under load.

ADO.NET Batch Updates and Asynchronous Commands

Async methods (ExecuteReaderAsync, ExecuteNonQueryAsync) are supported throughout, which matters for any ASP.NET Core app trying to avoid thread-pool starvation under concurrent requests.

.NET and C# Database Connectivity

C# Database Connectivity

Whether you’re building a console app, a Blazor project, or a Windows service, dotConnect’s C# API surface mirrors standard ADO.NET closely enough that switching databases mid-project rarely requires a rewrite — just new provider classes and a connection string.

dotConnect Performance and Advanced Database Features

dotConnect SQL Monitoring and SQL Tracing

The dbMonitor companion application intercepts and logs SQL statements generated by your app in real time, which is genuinely useful for spotting inefficient EF-generated queries during development.

Optimizing .NET Database Connectivity and Performance

A few practical tips that apply across dotConnect providers:

• Keep connection pooling enabled unless you have a specific reason to disable it.
• Use batch updates for bulk inserts instead of looping single INSERT statements.
• Watch generated SQL via dbMonitor before assuming EF is “slow.”
• Prefer async command methods in web applications.

dotConnect Troubleshooting and Common Errors

dotConnect Not Working: Common Causes and Fixes

Most connectivity issues trace back to one of a handful of causes:

dotConnect Connection String Errors

Double-check for missing semicolons, mismatched key names, or an outdated builder class if you upgraded the provider version recently — parameter names occasionally change between major versions.

dotConnect Entity Framework and EF Core Errors

When scaffolding fails or a DbContext throws an unexpected exception right after an upgrade, the cause is almost always a version mismatch between the EF Core package, the base ADO.NET provider package, and the EF Core-specific companion package.

dotConnect Visual Studio Errors

If the Visual Studio extension fails to show the schema browser or connection dialog after an IDE update, it’s usually because the extension hasn’t yet been rebuilt for the newer Visual Studio release. Checking the Visual Studio Marketplace listing for a compatible version, or falling back to configuring connections purely through code, resolves this in most cases.

dotConnect Pricing, License, and Free Trial

dotConnect Pricing and Licensing Options

Pricing varies by database and edition. Based on current public list pricing:

Prices fluctuate with promotions, so check Devart’s official ordering page for the current figure before buying.

Licenses are generally sold per developer rather than per deployment, and the initial purchase includes a year of updates and support. Site licenses, covering unlimited developers within a single company location, are available at a higher one-time cost and can work out cheaper for larger teams than buying individual seats. Multi-year subscription discounts are also fairly common during promotional periods, so it’s worth comparing the per-year cost of a two-year subscription against a single-year renewal before committing.

Is dotConnect Worth Paying For?

If your team relies heavily on Entity Framework, needs SSH/HTTP tunneling for secure remote access, or wants a single vendor supporting Oracle, MySQL, and PostgreSQL consistently, the license cost is often justified. If you only need basic connectivity to one open-source database, a free native driver may be all you need.

dotConnect Review: Is It a Good .NET Database Provider?

dotConnect Pros and Cons

Who Should Use dotConnect?

Teams working across multiple database engines, enterprises needing Oracle connectivity without installing Oracle’s client tools, and developers who want built-in SQL monitoring without adding a third-party profiler are the best fit.

dotConnect vs Other .NET Database Providers

dotConnect vs ODP.NET

ODP.NET is Oracle’s own official provider and is free, but dotConnect often wins on ease of deployment since it avoids installing Oracle client libraries, plus it adds EF/LINQ tooling ODP.NET doesn’t include natively.

dotConnect vs Npgsql

Npgsql is free, open-source, and extremely widely adopted for PostgreSQL — for many teams it’s simply the default choice. dotConnect for PostgreSQL earns its keep mainly if you need cross-database consistency or built-in SQL monitoring.

dotConnect vs Dapper

These aren’t really competitors — Dapper is a micro-ORM that sits on top of an ADO.NET provider, and dotConnect providers work fine underneath it.

Best ADO.NET and .NET Database Providers

Choosing the Right Data Provider for Your Database

A simple way to decide:

• Single open-source database, budget-conscious? Use the free native driver (Npgsql, MySqlConnector, Microsoft.Data.SqlClient).
• Oracle without wanting to install Oracle’s client tools? dotConnect for Oracle is a strong pick.
• Multiple databases, want consistent tooling and built-in SQL monitoring? dotConnect’s suite pays off.
• Need the absolute latest EF Core features day one? Native providers sometimes update faster.

dotConnect Alternatives

Best dotConnect Alternatives

When Should You Choose a dotConnect Alternative?

If cost is the primary constraint, or your project only touches one open-source database with no need for SSH tunneling or built-in SQL tracing, a free native provider will likely cover everything you need.

For a broader look at developer tooling and utility software worth having on hand, this related guide on SteamDB and companion tools is worth a look.

According to Microsoft’s official ADO.NET documentation, ADO.NET was designed from the ground up to support disconnected, scalable data access — a principle every provider on this list, dotConnect included, still builds on today.

Frequently Asked Questions About dotConnect