C# sql更新查询

using System;
using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = "Data Source=server;Initial Catalog=database;User ID=username;Password=password";
        string updateQuery = "UPDATE TableName SET ColumnName = 'NewValue' WHERE Condition";

        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            connection.Open();

            using (SqlCommand command = new SqlCommand(updateQuery, connection))
            {
                int rowsAffected = command.ExecuteNonQuery();
                Console.WriteLine("Rows affected: " + rowsAffected);
            }
        }
    }
}