How to connect MySQL in Nodejs

Source: Internet
Author: User
Tags mysql in

How to connect MySQL in Nodejs, here is a small demo.

The first step is to install the MySQL module
NPM install MySQL

The second step is to import the MySQL module
var mysql = require (' mysql ');

Third step to connect MySQL database
var connection = Mysql.createconnection ({
Host: ' localhost ',
User: ' Root ',
Password: ",
Database: ' Yudi '
});

Connection.connect ();
The fourth step executes a query statement
var sql = "Select * from the person where name= '" +username+ "";
Connection.query (Sql,function (err,rows,fields) {
if (ERR)
Console.log (ERR);
else{
Console.log (rows);
}
Remember to close the connection
Connection.end ();
});
ERR: is an error message
Rows: Information for queries
Fields: Return all information
Here is the demo

var mysql = require (' mysql '); var connection = Mysql.createconnection ({    host: ' localhost ',    User: ' Root ',    Password: ',    database: ' Yudi '}); Connection.connect (); var username = ' STU2 '; var sql = "Select * FROM person where name= ' "+username+" ' "; Connection.query (Sql,function (err,rows,fields) {    if (err)        console.log (err);    else{        console.log (rows);    }        Connection.end ();//Remember to close the connection});            

  

How to connect MySQL in Nodejs

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