static void Main()

   {

       string connectionString = "your_connection_string_here";

       string query = "SELECT * FROM your_table_name_here";

       using (SqlConnection connection = new SqlConnection(connectionString))

       {

           connection.Open();

           SqlCommand command = new SqlCommand(query, connection);

           SqlParameter parameter = new SqlParameter("@name", SqlDbType.NVarChar, 50);

           parameter.Value = "John Doe";

           command.Parameters.Add(parameter);

           SqlDataReader reader = command.ExecuteReader();

           // ...

       }

   }

   public static void main(String[] args) {

       String url = "your_jdbc_url_here";

       String user = "your_username_here";

       String password = "your_password_here";

       String query = "SELECT * FROM your_table_name_here";

       try (Connection connection = DriverManager.getConnection(url, user, password)) {

           connection.setAutoCommit(false);

           Statement statement = connection.createStatement();

           statement.setQueryTimeout(30); // 设置查询超时时间为30秒

           statement.executeQuery(query);

           // ...

       }

       catch (SQLException e) {

           e.printStackTrace();

       }

   }