从服务器拉取SQL数据的反应

从服务器拉取SQL数据的反应可以通过以下方式实现：

1. 使用Node.js的MySQL模块进行连接和查询：

const mysql = require('mysql');

const connection = mysql.createConnection({
  host: 'localhost',
  user: 'root',
  password: 'password',
  database: 'mydatabase'
});

connection.connect();

connection.query('SELECT * FROM users', (error, results, fields) => {
  if (error) throw error;
  console.log(results);
});

connection.end();

2. 使用PHP的mysqli扩展进行连接和查询：

<?php
$servername = "localhost";
$username = "root";
$password = "password";
$dbname = "mydatabase";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
  die("Connection failed: " . $conn->connect_error);
}

$sql = "SELECT * FROM users";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
  while($row = $result->fetch_assoc()) {
    print_r($row);
  }
} else {
  echo "0 results";
}

$conn->close();
?>

3. 使用Python的pymysql模块进行连接和查询：

import pymysql

connection = pymysql.connect(host='localhost',
                             user='root',
                             password='password',
                             database='mydatabase')

try:
    with connection.cursor() as cursor:
        sql = "SELECT * FROM users"
        cursor.execute(sql)
        result = cursor.fetchall()
        for row in result:
            print(row)
finally:
    connection.close()

以上代码示例展示了使用不同的编程语言和库进行从服务器拉取SQL数据的方法。您可以根据自己的需求选择适合的解决方案。