c#操作mysql

using System;
using MySql.Data;
using MySql.Data.MySqlClient;
using System.Data;
using System.Linq;

namespace ConsoleApp3
{
    class Program
    {
        private static Random random = new Random();

        public static string randomString(int length)
        {
            const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
            return new string(Enumerable.Repeat(chars, length).Select(s => s[random.Next(s.Length)]).ToArray());
        }

        static void Main(string[] args)
        {
            string connStr = "server=127.0.0.1; user=ycz; database=honbro; password=123456; port=3306";
            MySqlConnection connection = new MySqlConnection(connStr);
            connection.Open();
            Console.WriteLine("ok");

            MySqlCommand command;
            string sql = string.Empty;

            // insert into persons(LastName, FirstName, Address, City) values("", "", "", "")
            string lastName = string.Empty;
            string firstName = string.Empty;
            string address = string.Empty;
            string city = string.Empty;

            for (int  i = 0; i < 10000000; i++)
            {
                lastName = randomString(50);
                firstName = randomString(50);
                address = randomString(50);
                city = randomString(50);

                sql = String.Format("insert into persons(LastName, FIrstName, Address, City) values('{0}', '{1}', '{2}', '{3}')", lastName, firstName, address, city);
                command = new MySqlCommand(sql, connection);
                command.ExecuteNonQuery();
                Console.WriteLine(i);
            }

            // select count(*) from persons
            sql = "select count(*) from persons";
            command = new MySqlCommand(sql, connection);
            object result = command.ExecuteScalar();
            if (result != null)
            {
                int n = Convert.ToInt32(result);
                Console.WriteLine("total column count: {0}", n);
            }

            // select * from persons where P_id = 50000
            sql = "select * from persons where P_id = 50000";
            command = new MySqlCommand(sql, connection);
            MySqlDataReader reader = command.ExecuteReader();
            if (reader.Read())
            {
                Console.WriteLine(reader[0]);
                Console.WriteLine(reader[1]);
                Console.WriteLine(reader[2]);
                Console.WriteLine(reader[3]);
                Console.WriteLine(reader[4]);
            }
            reader.Close();

            connection.Close();
            Console.ReadKey();
        }
    }
}

　　

参考：https://zhuanlan.zhihu.com/p/28401873