const mysql = require('mysql');

const conn = mysql.createConnection({
    host:'localhost', 
    user:'root', 
    password:'', 
    database:'felhasznalok', 
})

conn. connection()

let sql = 'SELECT felhasznalok FROM felhasznalok;'

conn. query(sql, (err, result) => { 
    if(err){
        console. log(err);
        return
    }

    console. log(result)
})