using System.IO; string[] lines = { "First line", "Second line", "Third line" }; string path = @"C:\example.txt"; using (var writer = new StreamWriter(path)) { foreach (string line in lines) writer.WriteLine(line); }
using System.Data.SqlClient; string connectionString = "Data Source=servername;Initial Catalog=databasename;User ID=username;Password=password;"; string query = "INSERT INTO ExampleTable (Name, Age) VALUES ('John', 30)"; using (var connection = new SqlConnection(connectionString)) { connection.Open(); using (var command = new SqlCommand(query, connection)) { command.ExecuteNonQuery(); } }This example uses the SqlConnection and SqlCommand classes to connect to a SQL Server database and execute a SQL query to insert data into a table. Package library: As IDataWriter is part of C#/.NET framework, it does not have a package library of its own. However, it could potentially be included as part of a larger package or library that provides data access and manipulation functionality. One such example is the ADO.NET library, which provides classes for accessing and manipulating data from various data sources.