・App.config
・プログラム
using System; using System.Configuration; using System.Data.SqlClient; namespace SqlServerTest { class Program { static void Main(string[] args) { string connectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; using(SqlConnection con = new SqlConnection(connectionString)){ con.Open(); using (SqlCommand command = con.CreateCommand()) { string sql = "SELECT TOP 10 [BusinessEntityID], [FirstName] " + "FROM [Person].[Person];"; command.CommandText = sql; using (SqlDataReader reader = command.ExecuteReader()) { while (reader.Read()) { string[] data = new string[] { reader["BusinessEntityID"].ToString(), reader["FirstName"].ToString() }; Console.WriteLine(string.Join("\t", data)); } } } } } } }