异常: System.Data.SqlClient.SqlInternalConnection.OnError(SqlException处的.Net SqlClient数据提供程序异常，

using System;
using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = "your_connection_string_here";
        try
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                connection.Open();
                string sql = "SELECT * FROM YourTable";
                using (SqlCommand command = new SqlCommand(sql, connection))
                {
                    using (SqlDataReader reader = command.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            Console.WriteLine(reader["ColumnName"].ToString());
                        }
                    }
                }
            }
        }
        catch (SqlException ex)
        {
            Console.WriteLine("SQL Error: " + ex.Message);
            // 记录日志或进行其他处理
        }
        catch (Exception ex)
        {
            Console.WriteLine("General Error: " + ex.Message);
            // 记录日志或进行其他处理
        }
    }
}