mssql数据库mysql数据库

using System;
using System.Data.SqlClient;

class Program
{
    static void Main()
    {
        string connectionString = "Server=your_server;Database=your_database;User Id=your_username;Password=your_password;";
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            connection.Open();
            string query = "SELECT * FROM your_table";
            SqlCommand command = new SqlCommand(query, connection);
            SqlDataReader reader = command.ExecuteReader();
            while (reader.Read())
            {
                Console.WriteLine(reader["your_column"]);
            }
        }
    }
}

import mysql.connector

config = {
    'user': 'your_username',
    'password': 'your_password',
    'host': 'your_host',
    'database': 'your_database',
    'raise_on_warnings': True
}

try:
    cnx = mysql.connector.connect(**config)
    cursor = cnx.cursor()
    query = "SELECT * FROM your_table"
    cursor.execute(query)
    for row in cursor:
        print(row)
except mysql.connector.Error as err:
    print(f"Something went wrong: {err}")
finally:
    cursor.close()
    cnx.close()