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.

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

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.

Aug 10, 2025 · One of the core tools for this is SqlConnection — a class provided by ADO.NET that acts as a bridge between your application and a SQL Server database. Think of it as your …

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.

Aug 7, 2024 · In this guide, we've covered the basics of using SqlConnection in C# with examples showcasing how to establish a connection, execute queries, and handle exceptions.

Jun 7, 2016 · SqlConnection objects let other ADO.NET codes know what database to connect to and how to make the connection. They are instantiated by passing a connection string with a …

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

Jun 1, 2022 · This post demonstrates with an example how to connect to a MSSQL Database using the SqlConnection class and a valid connectionstring.