# Execute an Update statement on a MySql table

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Published 2022-12-03

This tutorial explains to you how to run an update command on a MySql database (table) from a Node.js application. This article provides you with an example as well.

Using Node.js you can connect to a database and run different operation as creating a table, select data from tables, update rows in tables, insert data into tables or delete information from a database.

In order to make possible this thing, you have to install into Node.js the proper package.

For MySql database you have to install mysql module (package):

npm install mysql

After that you can connect to MySQL Database and perform different operations.

Here it is a Node.js code which UPDATE a row into a MySQL table:

var mysql = require('mysql');
 
var con = mysql.createConnection({
  host: "localhost",
  user: "root",
  password: "1234",
  database: "world"
});
 
con.connect(function(err) {
  if (err) throw err;
  varName = "'Happy Palace'";
  con.query("UPDATE city set name="+ varName+ " where id = 10001", function (err, result, fields) {
    if (err) throw err;
    console.log(result);
     
  });
  con.end();
   
  console.log("END UPDATE block");
 
});
 
console.log("END of the application.");

When you run the code you will se the following into the console (you can see an ASYNC execution):