Azure Database for MySQL is a fully managed service that brings the reliability and scalability of the Azure cloud to one of the most popular open-source databases in the world. Whether you're building web apps, APIs, or data-driven services, MySQL in Azure offers a robust backend that integrates easily with the .NET technology.
This tutorial describes how to connect to an Azure MySQL database from a .NET application and perform basic CRUD operations using C# code. To simplify the task, we will use dotConnect for MySQL, a powerful data provider that enables direct connection to MySQL and MariaDB in the cloud.
Fully supports EF Core, Dapper, NHibernate, LinqConnect, and other technologies for efficient data management.
Conforms to the latest ADO.NET standards and innovations for seamless integration with .NET applications.
Offers many MySQL-specific features and fully supports all unique data types for accurate and complete data representation.
Provides robust security with support for SSL/SSH connections, connecting via proxy servers, embedded servers, and HTTP tunneling.
Features native integration with Visual Studio and complete design-time support for accelerated development.
Includes priority support, detailed documentation, and regular updates for continuous improvement.
You can start using dotConnect for MySQL immediately with a 30-day free trial. Choose one of the following installation options:
Let us connect to MySQL in Azure with the help of the built-in Data Explorer. Click Tools, then select Connect to Database, and choose MySQL as the data source.
Enter your server details and credentials. Click Connect.
Once connected, you can browse tables, execute queries, and manage data directly within the Data Explorer.
Let us establish a connection with the Azure MySQL database and then run a simple query to pull records from the Actor table. It confirms the connection is working and the data is accessible.
The DatabaseConnection.cs class keeps connection details separate for better maintainability.
using Devart.Data.MySql;
public static class DatabaseConnection
{
public static MySqlConnection CreateConnection()
{
string connectionString = "" +
"Server=test.mysql.database.azure.com;" +
"User Id=TestUser;" +
"Password=TestPassword;" +
"Database=TestDatabase;" +
"License Key=**********";
return new MySqlConnection(connectionString);
}
}Replace the placeholders in the connection string with your actual MySQL database credentials. If you own a paid license of dotConnect for MySQL, include the license key in the connection strings.
Add the below code to your Program.cs file.
using Devart.Data.MySql;
public sealed class Program
{
public static void Main(string[] args)
{
try
{
using (MySqlConnection connection = DatabaseConnection.CreateConnection())
{
connection.Open();
Console.WriteLine("Connection successful!");
string sql = "SELECT actor_id, first_name, last_name FROM actor ORDER BY actor_id LIMIT 10";
using (MySqlCommand command = new MySqlCommand(sql, connection))
using (MySqlDataReader reader = command.ExecuteReader())
{
Console.WriteLine("ActorId\tFirstName\tLastName");
while (reader.Read())
{
int actorId = reader.GetInt32(0);
string firstName = reader.GetString(1);
string lastName = reader.GetString(2);
Console.WriteLine(actorId + "\t" + firstName + "\t" + lastName);
}
}
}
}
catch (Exception ex)
{
Console.WriteLine("An error occurred: " + ex.Message);
}
}
}Build and run your application: select Start from the menu or click F5. It displays the data retrieved from the database.
| Property | Meaning |
|---|---|
| Database | Default database to be used after connecting. |
| Host | Hostname or IP address of the MySQL server. |
| License Key | Your license key. This is required only when using .NET Standard compatible assemblies. |
| Password | Password for the user ID. |
| Port | Port number on which the MySQL server is listening. |
| UserId | User ID used to authenticate with MySQL. |
Let's add a new row to the Actor table. For that, we need to compose and execute an INSERT command. Use the below code.
using Devart.Data.MySql;
public sealed class Program
{
public static void Main(string[] args)
{
try
{
using (MySqlConnection connection = DatabaseConnection.CreateConnection())
{
connection.Open();
Console.WriteLine("Connection successful!");
string insertSql = "INSERT INTO actor(first_name, last_name) VALUES(@first, @last)";
using (MySqlCommand insertCmd = new MySqlCommand(insertSql, connection))
{
insertCmd.Parameters.AddWithValue("@first", "TestFirst");
insertCmd.Parameters.AddWithValue("@last", "TestLast");
insertCmd.ExecuteNonQuery();
}
long newActorId = 0;
using (MySqlCommand idCmd = new MySqlCommand("SELECT LAST_INSERT_ID()", connection))
{
object result = idCmd.ExecuteScalar();
if (result != null && result != DBNull.Value)
{
newActorId = Convert.ToInt64(result);
}
}
Console.WriteLine("Inserted test actor (actor_id: " + newActorId + "): TestFirst TestLast");
}
}
catch (Exception ex)
{
Console.WriteLine("An error occurred: " + ex.Message);
}
}
}We can see the results in our application:
Next, we want to update an existing record by changing the actor's first and last name. The following code shows how to build and run an UPDATE command to modify data already stored in the database.
using Devart.Data.MySql;
public sealed class Program
{
public static void Main(string[] args)
{
try
{
using (MySqlConnection connection = DatabaseConnection.CreateConnection())
{
connection.Open();
Console.WriteLine("Connection successful!");
string updateSql = "UPDATE actor SET first_name = @first, last_name = @last WHERE actor_id = @id";
using (MySqlCommand updateCmd = new MySqlCommand(updateSql, connection))
{
updateCmd.Parameters.AddWithValue("@first", "Michael");
updateCmd.Parameters.AddWithValue("@last", "Anderson");
updateCmd.Parameters.AddWithValue("@id", 205);
int rowsAffected = updateCmd.ExecuteNonQuery();
if (rowsAffected > 0)
{
Console.WriteLine("Updated actor: Michael Anderson");
string selectSql = "SELECT actor_id, first_name, last_name FROM actor WHERE actor_id = @id";
using (MySqlCommand selectCmd = new MySqlCommand(selectSql, connection))
{
selectCmd.Parameters.AddWithValue("@id", 205);
using (MySqlDataReader reader = selectCmd.ExecuteReader())
{
if (reader.Read())
{
Console.WriteLine($"actor_id: {reader["actor_id"]}, first_name: {reader["first_name"]}, last_name: {reader["last_name"]}");
}
}
}
}
else
{
Console.WriteLine("No actor found with actor_id: 205");
}
}
}
}
catch (Exception ex)
{
Console.WriteLine("An error occurred: " + ex.Message);
}
}
}We can see the results in our application:
Finally, let us see how to delete the record. We are going to remove the actor we have just added to the database using the DELETE command with a condition.
using Devart.Data.MySql;
public sealed class Program
{
public static void Main(string[] args)
{
try
{
using (MySqlConnection connection = DatabaseConnection.CreateConnection())
{
connection.Open();
Console.WriteLine("Connection successful!");
string deleteSql = "DELETE FROM actor WHERE actor_id = @id";
using (MySqlCommand deleteCmd = new MySqlCommand(deleteSql, connection))
{
deleteCmd.Parameters.AddWithValue("@id", 205);
int rowsAffected = deleteCmd.ExecuteNonQuery();
if (rowsAffected > 0)
{
Console.WriteLine("Deleted actor with actor_id: 205");
}
else
{
Console.WriteLine("No actor found with actor_id: 205");
}
}
}
}
catch (Exception ex)
{
Console.WriteLine("An error occurred: " + ex.Message);
}
}
}The output in the application proves that the operation is successful.
This tutorial shows how to perform all the basic database operations against the cloud MySQL database in Azure from a .NET application. We have successfully connected, queried, inserted, updated, and deleted records, which are essential tasks for almost any application. From that, you can move forward to more advanced techniques, utilizing parameterized queries, transactions, stored procedures, and other features. In any case, you may not worry about connecting to MySQL and MariaDB in the Azure cloud, as dotConnect for MySQL will grant a smooth and secure connection simply and efficiently.
License Key parameter for a working connection.
License Key value, then create a MySqlConnection instance with this string and call Open() for it inside a try-catch block to test and handle connection errors.
Protocol=SSL and specify the SSL CA Cert, SSL Cert, and SSL Key file paths in the connection string, then open the MySqlConnection connection to establish an encrypted SSL/TLS connection.
Scaffold-DbContext with a dotConnect connection string (including License Key) to generate the DbContext and entity classes.
I'm a technical content writer who loves turning complex topics — think SQL, connectors, and backend chaos–into content that actually makes sense (and maybe even makes you smile). I write for devs, data folks, and curious minds who want less fluff and more clarity. When I'm not wrangling words, you'll find me dancing salsa, or hopping between cities.
