A SqlConnection object represents a unique session to a SQL Server data source. With a client/server database system, it is equivalent to a network connection to the server.

Dec 24, 2024 · We use SqlConnection in a "using" statement. The SqlConnection has a constructor that requires a string reference pointing to the connection string character data.

SqlConnection documentation from Microsoft was mentioned in another answer. What is missing is that does not need to be called if used in the following way (example is directly from the link above):

Aug 7, 2024 · When working with databases in C#, one of the essential components is the SqlConnection class. This class allows you to establish a connection to a SQL Server database and …

The SqlConnection class (typically from the Microsoft.Data.SqlClient namespace) in ADO.NET Core is used to establish and manage a session with a SQL Server database.

Feb 2, 2024 · This tutorial demonstrates how to connect to a SQL database on C# using SqlConnection object.

The SqlConnection draws an open connection from the connection pool if one is available. Otherwise, it establishes a new connection to an instance of SQL Server.

We use SqlConnection in a "using" statement. The SqlConnection has a constructor that requires a string reference pointing to the connection string character data.

Aug 10, 2025 · Whether you're reading customer data or updating product inventories, this guide will walk you through how to use SqlConnection to establish reliable and effective communication with …

SqlConnection properties return only those settings that are contained in the ConnectionString. To connect to a local computer, specify " (local)" for the server.