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 connection.Close() does not need to be called if used in the following way (example is directly from …

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.

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 …

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

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 …

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 set of …

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

Jan 6, 2025 · using (SqlConnection connection = new SqlConnection(conn.ConnectionString)) { //Query used in the code String sql = "SELECT CurrencyCode,Name from Sales.Currency"; //Connect to …