Node.js MySQL SELECT Unique Record

(WHERE Clause)

Retrieve a unique data from the table “employees”.

Create a js file named selectwhere.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 WHERE id = '1'", function (err, result) {  

if (err) throw err;  

console.log(result);  

});  

}); 

Now open command terminal and run the following command:

Node selectwhere.js  

Node.js MySQL Select Wildcard

Retrieve a unique data by using wildcard from the table “employees”.

Create a js file named selectwildcard.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 WHERE city LIKE 'A%'", function (err, result) {  

if (err) throw err;  

console.log(result);  

});  

});  

Now open command terminal and run the following command:

Node selectwildcard.js  

It will retrieve the record where city start with A.