Example
Retrieve all data from the table “employees”.
Create a js file named select.js having the following data in DBexample folder.
var mysql = require('mysql');  
var con = mysql.createConnection({  
host: "localhost",  
user: "root",  
password: "12345",  
database: "javatpoint"  
});  
con.connect(function(err) {  
if (err) throw err;  
con.query("SELECT * FROM employees", function (err, result) {  
if (err) throw err;  
console.log(result);  
});  
}); 
Now open command terminal and run the following command:
Node select.js  

You can also use the statement:
SELECT * FROM employees;  

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