If you want to know more about the advantages of using Azure AD authentication for connecting to an Azure SQL Database you can have a look in the official documentation. So you can manage directly which identity (user or application) have access to a database.Īpplications or users that want to query a database will authenticate against Azure AD to retrieve an access token that will allow them to access the database using a connection string without any username nor password. Azure Active Directory is the location that contains all the identities of your users and your applications in your company. Instead of using a secret connection string to connect to a database, the idea is to use the Azure Active Directory authentication mechanism. The new way: using Azure Active Directory Authentication
NET SQL SERVER CONNECTION STRING CODE
The corresponding C# code is quite simple: var connectionString = "Server= Database=database-testingmsi6499 User ID=globalSqlAdmin Password=MySecretPassword ")
The traditional way to connect to an Azure SQL database from an application in C# is to provide to the SqlConnection constructor a connection string that contains a username and a password. The traditional way: using a secret connection string NET Core and replace the old components.īut first, let's talk about how we used to do that before. ? If you do not have heard about, it is the new data provider for Microsoft SQL Server and Azure SQL Database which supports both. Let's see what this means when querying an Azure SQL Database from some C# code. In the near future, README file will cover connections to other kinds of servers and databases.In v3.0.0, a new authentication mode Active Directory Default has been released. Command and Data Reader SqlCommand cmd = new SqlCommand() cmd.Connection = conn cmd.CommandType = CommandType.Text cmd.CommandText = "SELECT * FROM Person.Person" SqlDataReader sdr = cmd.ExecuteReader(CommandBehavior.Default) Stephen GlasskeysCįinally, close and dispose of the objects when finished. This source creates a SQLcommand using the conn connection object created above. This is the connection string name, and we can use this to create a connection object in source: using System.Configuration //Retrieve Connection String By Name string sConn = "" ConnectionStringSettings settings = ConfigurationManager.ConnectionStrings SqlConnection conn = new SqlConnection(settings.ConnectionString) Stephen GlasskeysĪlternatively, you can access the same setting value, reading the Application's properties: string sConnection = Stephen GlasskeysĪnd of course, the connection can be used to create SqlCommand or other data objects like a SqlDataReader. Notice the name=" " entry in the example image below. Look for values inside the connectionStrings tag. Next, open app.config to examine its contents. When the project is saved, Visual Studio updates setting information in the app.config XML file. However if everything works as it should, don't forget to click the Save toolbar icon to keep your new connection string setting.
NET SQL SERVER CONNECTION STRING HOW TO
If you click Test Connection again and receive another error message, you may wish to read my piece on How to fix common SQL Server Management Studio 'Connect to Server' errors. To validate your connection, use the Test Connection feature, and click OK if you receive a "test connection succeeded" notification.īut.you may get an error message, which means you'll probably need to double-check the server name, log on credentials, or authentication entries.